Finding the Fourth Proportional to 235,686.11, 325,245.98 and 128,254.19
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Solution
The fourth proportional to 235,686.11, 325,245.98 and 128,254.19 is: 176,990.32
Step by Step Solution
- Step 1: Write the proportion equation
235,686.11 : 325,245.98 = 128,254.19 : x - Step 2: Convert to fraction form
235,686.11/325,245.98 = 128,254.19/x - Step 3: Cross multiply
235,686.11x = 325,245.98 × 128,254.19 - Step 4: Simplify right side
235,686.11x = 41,714,158,410.06 - Step 5: Solve for x
x = 41,714,158,410.06/235,686.11 - Step 6: Final answer
x = 176,990.32
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1.5x scale
Why These Related Problems?
These problems maintain the same ratio (1.38) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.