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Finding the Fourth Proportional to 79,737,979.60, 119,662,956.60 and 34,332,360.40

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Solution

The fourth proportional to 79,737,979.60, 119,662,956.60 and 34,332,360.40 is: 51,522,646.71

Step by Step Solution

  1. Step 1: Write the proportion equation
    79,737,979.60 : 119,662,956.60 = 34,332,360.40 : x
  2. Step 2: Convert to fraction form
    79,737,979.60/119,662,956.60 = 34,332,360.40/x
  3. Step 3: Cross multiply
    79,737,979.60x = 119,662,956.60 × 34,332,360.40
  4. Step 4: Simplify right side
    79,737,979.60x = 4,108,311,752,520,758.50
  5. Step 5: Solve for x
    x = 4,108,311,752,520,758.50/79,737,979.60
  6. Step 6: Final answer
    x = 51,522,646.71

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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.