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Finding the Fourth Proportional to 269,572.60, 404,358.90 and 82,559.80

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Solution

The fourth proportional to 269,572.60, 404,358.90 and 82,559.80 is: 123,839.70

Step by Step Solution

  1. Step 1: Write the proportion equation
    269,572.60 : 404,358.90 = 82,559.80 : x
  2. Step 2: Convert to fraction form
    269,572.60/404,358.90 = 82,559.80/x
  3. Step 3: Cross multiply
    269,572.60x = 404,358.90 × 82,559.80
  4. Step 4: Simplify right side
    269,572.60x = 33,383,789,912.22
  5. Step 5: Solve for x
    x = 33,383,789,912.22/269,572.60
  6. Step 6: Final answer
    x = 123,839.70

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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.