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Finding the Fourth Proportional to 91,225,073.88, 136,836,469.53 and 22,138,449.80

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Solution

The fourth proportional to 91,225,073.88, 136,836,469.53 and 22,138,449.80 is: 33,207,397.72

Step by Step Solution

  1. Step 1: Write the proportion equation
    91,225,073.88 : 136,836,469.53 = 22,138,449.80 : x
  2. Step 2: Convert to fraction form
    91,225,073.88/136,836,469.53 = 22,138,449.80/x
  3. Step 3: Cross multiply
    91,225,073.88x = 136,836,469.53 × 22,138,449.80
  4. Step 4: Simplify right side
    91,225,073.88x = 3,029,347,310,814,952.50
  5. Step 5: Solve for x
    x = 3,029,347,310,814,952.50/91,225,073.88
  6. Step 6: Final answer
    x = 33,207,397.72

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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.