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Finding the Fourth Proportional to 80,094,648.60, 120,141,972.90 and 80,094,648.60

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Solution

The fourth proportional to 80,094,648.60, 120,141,972.90 and 80,094,648.60 is: 120,141,972.90

Step by Step Solution

  1. Step 1: Write the proportion equation
    80,094,648.60 : 120,141,972.90 = 80,094,648.60 : x
  2. Step 2: Convert to fraction form
    80,094,648.60/120,141,972.90 = 80,094,648.60/x
  3. Step 3: Cross multiply
    80,094,648.60x = 120,141,972.90 × 80,094,648.60
  4. Step 4: Simplify right side
    80,094,648.60x = 9,622,729,101,536,222
  5. Step 5: Solve for x
    x = 9,622,729,101,536,222/80,094,648.60
  6. Step 6: Final answer
    x = 120,141,972.90

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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.