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Finding the Fourth Proportional to 113,714.55, 156,926.97 and 62,729.10

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Solution

The fourth proportional to 113,714.55, 156,926.97 and 62,729.10 is: 86,566.65

Step by Step Solution

  1. Step 1: Write the proportion equation
    113,714.55 : 156,926.97 = 62,729.10 : x
  2. Step 2: Convert to fraction form
    113,714.55/156,926.97 = 62,729.10/x
  3. Step 3: Cross multiply
    113,714.55x = 156,926.97 × 62,729.10
  4. Step 4: Simplify right side
    113,714.55x = 9,843,887,593.83
  5. Step 5: Solve for x
    x = 9,843,887,593.83/113,714.55
  6. Step 6: Final answer
    x = 86,566.65

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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.