Finding the Fourth Proportional to 186,936.86, 257,971.55 and 102,053.92
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Solution
The fourth proportional to 186,936.86, 257,971.55 and 102,053.92 is: 140,833.69
Step by Step Solution
- Step 1: Write the proportion equation
186,936.86 : 257,971.55 = 102,053.92 : x - Step 2: Convert to fraction form
186,936.86/257,971.55 = 102,053.92/x - Step 3: Cross multiply
186,936.86x = 257,971.55 × 102,053.92 - Step 4: Simplify right side
186,936.86x = 26,327,006,770.78 - Step 5: Solve for x
x = 26,327,006,770.78/186,936.86 - Step 6: Final answer
x = 140,833.69
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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.