Hi Jeremy W.
Sides are 24 ft, 32 ft, and 48 ft
The Perimeter of a Triangle is the sum of its three sides
Given the ratio the sides 3 : 4 : 6
Since the ratio indicates that sides share a common factor, we only need one variable to represent that value
Let x = unknown value
Given the Perimeter = 104
We have
3x + 4x + 6x = 104
13x = 104
Divide both sides by 13
x = 104/13
x = 8
Checking
3x + 4x + 6x = 104
3(8) + 4(8) + 6(8) = 104
24 + 32 + 48 = 104
104 = 104
I hope this helps