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Finding the Fourth Proportional to 92,532.97, 138,856.86 and 42,620.16

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Solution

The fourth proportional to 92,532.97, 138,856.86 and 42,620.16 is: 63,956.68

Step by Step Solution

  1. Step 1: Write the proportion equation
    92,532.97 : 138,856.86 = 42,620.16 : x
  2. Step 2: Convert to fraction form
    92,532.97/138,856.86 = 42,620.16/x
  3. Step 3: Cross multiply
    92,532.97x = 138,856.86 × 42,620.16
  4. Step 4: Simplify right side
    92,532.97x = 5,918,101,590.30
  5. Step 5: Solve for x
    x = 5,918,101,590.30/92,532.97
  6. Step 6: Final answer
    x = 63,956.68

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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.