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Finding the Fourth Proportional to 113,700.38, 156,907.14 and 62,714.90

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Solution

The fourth proportional to 113,700.38, 156,907.14 and 62,714.90 is: 86,546.90

Step by Step Solution

  1. Step 1: Write the proportion equation
    113,700.38 : 156,907.14 = 62,714.90 : x
  2. Step 2: Convert to fraction form
    113,700.38/156,907.14 = 62,714.90/x
  3. Step 3: Cross multiply
    113,700.38x = 156,907.14 × 62,714.90
  4. Step 4: Simplify right side
    113,700.38x = 9,840,415,594.39
  5. Step 5: Solve for x
    x = 9,840,415,594.39/113,700.38
  6. Step 6: Final answer
    x = 86,546.90

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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.