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Finding the Fourth Proportional to 169,469,882.80, 254,228,443.80 and 72,424,819.60

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Solution

The fourth proportional to 169,469,882.80, 254,228,443.80 and 72,424,819.60 is: 108,647,323.50

Step by Step Solution

  1. Step 1: Write the proportion equation
    169,469,882.80 : 254,228,443.80 = 72,424,819.60 : x
  2. Step 2: Convert to fraction form
    169,469,882.80/254,228,443.80 = 72,424,819.60/x
  3. Step 3: Cross multiply
    169,469,882.80x = 254,228,443.80 × 72,424,819.60
  4. Step 4: Simplify right side
    169,469,882.80x = 18,412,449,179,403,736
  5. Step 5: Solve for x
    x = 18,412,449,179,403,736/169,469,882.80
  6. Step 6: Final answer
    x = 108,647,323.50

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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.