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Finding the Fourth Proportional to 71,493.59, 107,249.33 and 21,573.61

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Solution

The fourth proportional to 71,493.59, 107,249.33 and 21,573.61 is: 32,363.11

Step by Step Solution

  1. Step 1: Write the proportion equation
    71,493.59 : 107,249.33 = 21,573.61 : x
  2. Step 2: Convert to fraction form
    71,493.59/107,249.33 = 21,573.61/x
  3. Step 3: Cross multiply
    71,493.59x = 107,249.33 × 21,573.61
  4. Step 4: Simplify right side
    71,493.59x = 2,313,754,882.64
  5. Step 5: Solve for x
    x = 2,313,754,882.64/71,493.59
  6. Step 6: Final answer
    x = 32,363.11

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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.