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Finding the Fourth Proportional to 92,008.80, 138,013.17 and 29,679.30

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Solution

The fourth proportional to 92,008.80, 138,013.17 and 29,679.30 is: 44,518.94

Step by Step Solution

  1. Step 1: Write the proportion equation
    92,008.80 : 138,013.17 = 29,679.30 : x
  2. Step 2: Convert to fraction form
    92,008.80/138,013.17 = 29,679.30/x
  3. Step 3: Cross multiply
    92,008.80x = 138,013.17 × 29,679.30
  4. Step 4: Simplify right side
    92,008.80x = 4,096,134,276.38
  5. Step 5: Solve for x
    x = 4,096,134,276.38/92,008.80
  6. Step 6: Final answer
    x = 44,518.94

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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.