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Finding the Fourth Proportional to 107,892.72, 148,891.95 and 60,149.12

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Solution

The fourth proportional to 107,892.72, 148,891.95 and 60,149.12 is: 83,005.78

Step by Step Solution

  1. Step 1: Write the proportion equation
    107,892.72 : 148,891.95 = 60,149.12 : x
  2. Step 2: Convert to fraction form
    107,892.72/148,891.95 = 60,149.12/x
  3. Step 3: Cross multiply
    107,892.72x = 148,891.95 × 60,149.12
  4. Step 4: Simplify right side
    107,892.72x = 8,955,719,023.12
  5. Step 5: Solve for x
    x = 8,955,719,023.12/107,892.72
  6. Step 6: Final answer
    x = 83,005.78

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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.