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Finding the Fourth Proportional to 439,099.24, 658,687.74 and 123,558.88

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Solution

The fourth proportional to 439,099.24, 658,687.74 and 123,558.88 is: 185,349.26

Step by Step Solution

  1. Step 1: Write the proportion equation
    439,099.24 : 658,687.74 = 123,558.88 : x
  2. Step 2: Convert to fraction form
    439,099.24/658,687.74 = 123,558.88/x
  3. Step 3: Cross multiply
    439,099.24x = 658,687.74 × 123,558.88
  4. Step 4: Simplify right side
    439,099.24x = 81,386,719,424.13
  5. Step 5: Solve for x
    x = 81,386,719,424.13/439,099.24
  6. Step 6: Final answer
    x = 185,349.26

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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.