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Finding the Fourth Proportional to 186,612.67, 257,525.49 and 101,729.80

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Solution

The fourth proportional to 186,612.67, 257,525.49 and 101,729.80 is: 140,387.13

Step by Step Solution

  1. Step 1: Write the proportion equation
    186,612.67 : 257,525.49 = 101,729.80 : x
  2. Step 2: Convert to fraction form
    186,612.67/257,525.49 = 101,729.80/x
  3. Step 3: Cross multiply
    186,612.67x = 257,525.49 × 101,729.80
  4. Step 4: Simplify right side
    186,612.67x = 26,198,016,592.60
  5. Step 5: Solve for x
    x = 26,198,016,592.60/186,612.67
  6. Step 6: Final answer
    x = 140,387.13

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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.