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Finding the Fourth Proportional to 67,331.76, 101,001.78 and 27,891.96

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Solution

The fourth proportional to 67,331.76, 101,001.78 and 27,891.96 is: 41,839.65

Step by Step Solution

  1. Step 1: Write the proportion equation
    67,331.76 : 101,001.78 = 27,891.96 : x
  2. Step 2: Convert to fraction form
    67,331.76/101,001.78 = 27,891.96/x
  3. Step 3: Cross multiply
    67,331.76x = 101,001.78 × 27,891.96
  4. Step 4: Simplify right side
    67,331.76x = 2,817,137,607.69
  5. Step 5: Solve for x
    x = 2,817,137,607.69/67,331.76
  6. Step 6: Final answer
    x = 41,839.65

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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.