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Finding the Fourth Proportional to 502,687.98, 754,025.45 and 123,612.03

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Solution

The fourth proportional to 502,687.98, 754,025.45 and 123,612.03 is: 185,416.44

Step by Step Solution

  1. Step 1: Write the proportion equation
    502,687.98 : 754,025.45 = 123,612.03 : x
  2. Step 2: Convert to fraction form
    502,687.98/754,025.45 = 123,612.03/x
  3. Step 3: Cross multiply
    502,687.98x = 754,025.45 × 123,612.03
  4. Step 4: Simplify right side
    502,687.98x = 93,206,615,928.10
  5. Step 5: Solve for x
    x = 93,206,615,928.10/502,687.98
  6. Step 6: Final answer
    x = 185,416.44

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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.