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Finding the Fourth Proportional to 92,481.55, 138,727.11 and 29,308.38

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Solution

The fourth proportional to 92,481.55, 138,727.11 and 29,308.38 is: 43,964.09

Step by Step Solution

  1. Step 1: Write the proportion equation
    92,481.55 : 138,727.11 = 29,308.38 : x
  2. Step 2: Convert to fraction form
    92,481.55/138,727.11 = 29,308.38/x
  3. Step 3: Cross multiply
    92,481.55x = 138,727.11 × 29,308.38
  4. Step 4: Simplify right side
    92,481.55x = 4,065,866,978.91
  5. Step 5: Solve for x
    x = 4,065,866,978.91/92,481.55
  6. Step 6: Final answer
    x = 43,964.09

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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.