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Finding the Fourth Proportional to 66,801,623.20, 100,202,434.80 and 44,108,144.80

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Solution

The fourth proportional to 66,801,623.20, 100,202,434.80 and 44,108,144.80 is: 66,162,217.20

Step by Step Solution

  1. Step 1: Write the proportion equation
    66,801,623.20 : 100,202,434.80 = 44,108,144.80 : x
  2. Step 2: Convert to fraction form
    66,801,623.20/100,202,434.80 = 44,108,144.80/x
  3. Step 3: Cross multiply
    66,801,623.20x = 100,202,434.80 × 44,108,144.80
  4. Step 4: Simplify right side
    66,801,623.20x = 4,419,743,503,470,958.50
  5. Step 5: Solve for x
    x = 4,419,743,503,470,958.50/66,801,623.20
  6. Step 6: Final answer
    x = 66,162,217.20

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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.