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Finding the Fourth Proportional to 88,661.10, 133,034.85 and 67,593.90

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Solution

The fourth proportional to 88,661.10, 133,034.85 and 67,593.90 is: 101,423.79

Step by Step Solution

  1. Step 1: Write the proportion equation
    88,661.10 : 133,034.85 = 67,593.90 : x
  2. Step 2: Convert to fraction form
    88,661.10/133,034.85 = 67,593.90/x
  3. Step 3: Cross multiply
    88,661.10x = 133,034.85 × 67,593.90
  4. Step 4: Simplify right side
    88,661.10x = 8,992,344,347.42
  5. Step 5: Solve for x
    x = 8,992,344,347.42/88,661.10
  6. Step 6: Final answer
    x = 101,423.79

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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.