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Finding the Fourth Proportional to 266,062.38, 399,162.72 and 132,937.26

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Solution

The fourth proportional to 266,062.38, 399,162.72 and 132,937.26 is: 199,440.44

Step by Step Solution

  1. Step 1: Write the proportion equation
    266,062.38 : 399,162.72 = 132,937.26 : x
  2. Step 2: Convert to fraction form
    266,062.38/399,162.72 = 132,937.26/x
  3. Step 3: Cross multiply
    266,062.38x = 399,162.72 × 132,937.26
  4. Step 4: Simplify right side
    266,062.38x = 53,063,598,290.95
  5. Step 5: Solve for x
    x = 53,063,598,290.95/266,062.38
  6. Step 6: Final answer
    x = 199,440.44

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Why These Related Problems?

These problems maintain the same ratio (1.50) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.