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Finding the Fourth Proportional to 225,550.32, 338,330.97 and 75,792.78

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Solution

The fourth proportional to 225,550.32, 338,330.97 and 75,792.78 is: 113,691.01

Step by Step Solution

  1. Step 1: Write the proportion equation
    225,550.32 : 338,330.97 = 75,792.78 : x
  2. Step 2: Convert to fraction form
    225,550.32/338,330.97 = 75,792.78/x
  3. Step 3: Cross multiply
    225,550.32x = 338,330.97 × 75,792.78
  4. Step 4: Simplify right side
    225,550.32x = 25,643,044,776.40
  5. Step 5: Solve for x
    x = 25,643,044,776.40/225,550.32
  6. Step 6: Final answer
    x = 113,691.01

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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.