Calculating Original Vectors: Solving for Net Force"

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To solve for the original vectors given the net force's angle and magnitude, decompose the net force into its components. Since the original forces are concurrent and their angles are known, set up a system of equations based on the components of the forces. The number of equations will match the number of components, allowing for the calculation of the magnitudes of the original forces. This method effectively utilizes vector decomposition to find the required magnitudes. Understanding the relationships between the forces is crucial for accurate calculations.
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Given the net force how would I go about solving for the original vectors that are being added?
 
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I know what the net forces angle and magnitude is... I need to find the magnitude of the original forces(3 of them) which are added to get the net force; All the original forces are at fixed poistions and I do know their Angles; How would I find the the original forces magnitude's?
 
Well the forces are probably concurrent, so simply decompose into their components and the resultant force into their components too, and make nxn system of equations (n = number of components).
 
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