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Finding the Fourth Proportional to 225,453.62, 338,213.64 and 67,694.78

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Solution

The fourth proportional to 225,453.62, 338,213.64 and 67,694.78 is: 101,552.14

Step by Step Solution

  1. Step 1: Write the proportion equation
    225,453.62 : 338,213.64 = 67,694.78 : x
  2. Step 2: Convert to fraction form
    225,453.62/338,213.64 = 67,694.78/x
  3. Step 3: Cross multiply
    225,453.62x = 338,213.64 × 67,694.78
  4. Step 4: Simplify right side
    225,453.62x = 22,895,297,952.80
  5. Step 5: Solve for x
    x = 22,895,297,952.80/225,453.62
  6. Step 6: Final answer
    x = 101,552.14

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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.