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F1 = 50i N

e2 = -0.485i + 0.485j - 0.728k

e3 = -0.557i + 0.743j + 0.371k

e4 = -0.371i - 0.743j + 0.557k

I need to find the magnitudes of F2,F3,and F4

I got F2 = 373.67 N (this might be a + or -, not sure, thinking +)

F3 = 346.43 N

F4 = 102.44 N

I used the equilibrium in each direction (x,y,z) and then I had three equations with three unknowns.

If someone could confirm that or tell me where I messed up, that would be great. Thanks!