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Finding the Fourth Proportional to 484,188.12, 726,324.30 and 129,204

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Solution

The fourth proportional to 484,188.12, 726,324.30 and 129,204 is: 193,817.24

Step by Step Solution

  1. Step 1: Write the proportion equation
    484,188.12 : 726,324.30 = 129,204 : x
  2. Step 2: Convert to fraction form
    484,188.12/726,324.30 = 129,204/x
  3. Step 3: Cross multiply
    484,188.12x = 726,324.30 × 129,204
  4. Step 4: Simplify right side
    484,188.12x = 93,844,004,857.20
  5. Step 5: Solve for x
    x = 93,844,004,857.20/484,188.12
  6. Step 6: Final answer
    x = 193,817.24

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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.