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Finding the Fourth Proportional to 80,166,891.40, 120,250,337.10 and 80,166,891.40

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Solution

The fourth proportional to 80,166,891.40, 120,250,337.10 and 80,166,891.40 is: 120,250,337.10

Step by Step Solution

  1. Step 1: Write the proportion equation
    80,166,891.40 : 120,250,337.10 = 80,166,891.40 : x
  2. Step 2: Convert to fraction form
    80,166,891.40/120,250,337.10 = 80,166,891.40/x
  3. Step 3: Cross multiply
    80,166,891.40x = 120,250,337.10 × 80,166,891.40
  4. Step 4: Simplify right side
    80,166,891.40x = 9,640,095,715,109,092
  5. Step 5: Solve for x
    x = 9,640,095,715,109,092/80,166,891.40
  6. Step 6: Final answer
    x = 120,250,337.10

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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.