The forces are:
- \( F_1 = 200 \, \text{lb} \) (acting horizontally to the right)
- \( F_2 = 400 \, \text{lb} \) (acting at an angle with a ratio of 3:4:5)
- \( F_3 = 300 \, \text{lb} \) (acting downward at an angle with a ratio of 3:4:5)
- \( F_4 = 300 \,
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