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Finding the Fourth Proportional to 439,062.66, 658,593.99 and 123,519.42

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Solution

The fourth proportional to 439,062.66, 658,593.99 and 123,519.42 is: 185,279.13

Step by Step Solution

  1. Step 1: Write the proportion equation
    439,062.66 : 658,593.99 = 123,519.42 : x
  2. Step 2: Convert to fraction form
    439,062.66/658,593.99 = 123,519.42/x
  3. Step 3: Cross multiply
    439,062.66x = 658,593.99 × 123,519.42
  4. Step 4: Simplify right side
    439,062.66x = 81,349,147,660.29
  5. Step 5: Solve for x
    x = 81,349,147,660.29/439,062.66
  6. Step 6: Final answer
    x = 185,279.13

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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.