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Finding the Fourth Proportional to 444,864.90, 667,232.55 and 129,288.90

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Solution

The fourth proportional to 444,864.90, 667,232.55 and 129,288.90 is: 193,914.52

Step by Step Solution

  1. Step 1: Write the proportion equation
    444,864.90 : 667,232.55 = 129,288.90 : x
  2. Step 2: Convert to fraction form
    444,864.90/667,232.55 = 129,288.90/x
  3. Step 3: Cross multiply
    444,864.90x = 667,232.55 × 129,288.90
  4. Step 4: Simplify right side
    444,864.90x = 86,265,762,433.70
  5. Step 5: Solve for x
    x = 86,265,762,433.70/444,864.90
  6. Step 6: Final answer
    x = 193,914.52

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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.