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Finding the Fourth Proportional to 363,957,436.80, 545,936,155.20 and 159,884,092.80

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Solution

The fourth proportional to 363,957,436.80, 545,936,155.20 and 159,884,092.80 is: 239,826,139.20

Step by Step Solution

  1. Step 1: Write the proportion equation
    363,957,436.80 : 545,936,155.20 = 159,884,092.80 : x
  2. Step 2: Convert to fraction form
    363,957,436.80/545,936,155.20 = 159,884,092.80/x
  3. Step 3: Cross multiply
    363,957,436.80x = 545,936,155.20 × 159,884,092.80
  4. Step 4: Simplify right side
    363,957,436.80x = 87,286,506,900,872,016
  5. Step 5: Solve for x
    x = 87,286,506,900,872,016/363,957,436.80
  6. Step 6: Final answer
    x = 239,826,139.20

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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.