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Finding the Fourth Proportional to 67,115.71, 100,610.94 and 22,711.57

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Solution

The fourth proportional to 67,115.71, 100,610.94 and 22,711.57 is: 34,046.16

Step by Step Solution

  1. Step 1: Write the proportion equation
    67,115.71 : 100,610.94 = 22,711.57 : x
  2. Step 2: Convert to fraction form
    67,115.71/100,610.94 = 22,711.57/x
  3. Step 3: Cross multiply
    67,115.71x = 100,610.94 × 22,711.57
  4. Step 4: Simplify right side
    67,115.71x = 2,285,031,903.52
  5. Step 5: Solve for x
    x = 2,285,031,903.52/67,115.71
  6. Step 6: Final answer
    x = 34,046.16

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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.