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Finding the Fourth Proportional to 300,863.28, 451,178.28 and 160,545.36

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Solution

The fourth proportional to 300,863.28, 451,178.28 and 160,545.36 is: 240,755.80

Step by Step Solution

  1. Step 1: Write the proportion equation
    300,863.28 : 451,178.28 = 160,545.36 : x
  2. Step 2: Convert to fraction form
    300,863.28/451,178.28 = 160,545.36/x
  3. Step 3: Cross multiply
    300,863.28x = 451,178.28 × 160,545.36
  4. Step 4: Simplify right side
    300,863.28x = 72,434,579,386.78
  5. Step 5: Solve for x
    x = 72,434,579,386.78/300,863.28
  6. Step 6: Final answer
    x = 240,755.80

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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.