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Finding the Fourth Proportional to 110,805.43, 166,149.82 and 75,755.11

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Solution

The fourth proportional to 110,805.43, 166,149.82 and 75,755.11 is: 113,592.79

Step by Step Solution

  1. Step 1: Write the proportion equation
    110,805.43 : 166,149.82 = 75,755.11 : x
  2. Step 2: Convert to fraction form
    110,805.43/166,149.82 = 75,755.11/x
  3. Step 3: Cross multiply
    110,805.43x = 166,149.82 × 75,755.11
  4. Step 4: Simplify right side
    110,805.43x = 12,586,697,890.58
  5. Step 5: Solve for x
    x = 12,586,697,890.58/110,805.43
  6. Step 6: Final answer
    x = 113,592.79

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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.