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Finding the Fourth Proportional to 161,092.68, 222,308.10 and 89,470.86

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Solution

The fourth proportional to 161,092.68, 222,308.10 and 89,470.86 is: 123,469.90

Step by Step Solution

  1. Step 1: Write the proportion equation
    161,092.68 : 222,308.10 = 89,470.86 : x
  2. Step 2: Convert to fraction form
    161,092.68/222,308.10 = 89,470.86/x
  3. Step 3: Cross multiply
    161,092.68x = 222,308.10 × 89,470.86
  4. Step 4: Simplify right side
    161,092.68x = 19,890,096,891.97
  5. Step 5: Solve for x
    x = 19,890,096,891.97/161,092.68
  6. Step 6: Final answer
    x = 123,469.90

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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.