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Finding the Fourth Proportional to 225,747.36, 338,491.44 and 67,929.12

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Solution

The fourth proportional to 225,747.36, 338,491.44 and 67,929.12 is: 101,854.68

Step by Step Solution

  1. Step 1: Write the proportion equation
    225,747.36 : 338,491.44 = 67,929.12 : x
  2. Step 2: Convert to fraction form
    225,747.36/338,491.44 = 67,929.12/x
  3. Step 3: Cross multiply
    225,747.36x = 338,491.44 × 67,929.12
  4. Step 4: Simplify right side
    225,747.36x = 22,993,425,646.73
  5. Step 5: Solve for x
    x = 22,993,425,646.73/225,747.36
  6. Step 6: Final answer
    x = 101,854.68

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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.