Four parts are 3x, 4x, 5x and 7x.
Sum of all parts = 152
3x+4x+5x+7x = 152
19x = 152
x = 152/19 = 8
Smallest part 3x = 3 x 8 = 24.
Sum of all parts = 152
3x+4x+5x+7x = 152
19x = 152
x = 152/19 = 8
Smallest part 3x = 3 x 8 = 24.

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