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Finding the Fourth Proportional to 132,363.80, 198,545.70 and 123,615.80

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Solution

The fourth proportional to 132,363.80, 198,545.70 and 123,615.80 is: 185,423.70

Step by Step Solution

  1. Step 1: Write the proportion equation
    132,363.80 : 198,545.70 = 123,615.80 : x
  2. Step 2: Convert to fraction form
    132,363.80/198,545.70 = 123,615.80/x
  3. Step 3: Cross multiply
    132,363.80x = 198,545.70 × 123,615.80
  4. Step 4: Simplify right side
    132,363.80x = 24,543,385,542.06
  5. Step 5: Solve for x
    x = 24,543,385,542.06/132,363.80
  6. Step 6: Final answer
    x = 185,423.70

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1.5x scale

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.