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Finding the Fourth Proportional to 132,363.40, 198,545.10 and 106,119.40

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Solution

The fourth proportional to 132,363.40, 198,545.10 and 106,119.40 is: 159,179.10

Step by Step Solution

  1. Step 1: Write the proportion equation
    132,363.40 : 198,545.10 = 106,119.40 : x
  2. Step 2: Convert to fraction form
    132,363.40/198,545.10 = 106,119.40/x
  3. Step 3: Cross multiply
    132,363.40x = 198,545.10 × 106,119.40
  4. Step 4: Simplify right side
    132,363.40x = 21,069,486,884.94
  5. Step 5: Solve for x
    x = 21,069,486,884.94/132,363.40
  6. Step 6: Final answer
    x = 159,179.10

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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.