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Finding the Fourth Proportional to 450,993.38, 676,545.68 and 147,380.36

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Solution

The fourth proportional to 450,993.38, 676,545.68 and 147,380.36 is: 221,088.71

Step by Step Solution

  1. Step 1: Write the proportion equation
    450,993.38 : 676,545.68 = 147,380.36 : x
  2. Step 2: Convert to fraction form
    450,993.38/676,545.68 = 147,380.36/x
  3. Step 3: Cross multiply
    450,993.38x = 676,545.68 × 147,380.36
  4. Step 4: Simplify right side
    450,993.38x = 99,709,542,860.57
  5. Step 5: Solve for x
    x = 99,709,542,860.57/450,993.38
  6. Step 6: Final answer
    x = 221,088.71

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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.