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Finding the Fourth Proportional to 279,481,605.20, 419,281,390.20 and 88,024,734.80

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Solution

The fourth proportional to 279,481,605.20, 419,281,390.20 and 88,024,734.80 is: 132,055,679.13

Step by Step Solution

  1. Step 1: Write the proportion equation
    279,481,605.20 : 419,281,390.20 = 88,024,734.80 : x
  2. Step 2: Convert to fraction form
    279,481,605.20/419,281,390.20 = 88,024,734.80/x
  3. Step 3: Cross multiply
    279,481,605.20x = 419,281,390.20 × 88,024,734.80
  4. Step 4: Simplify right side
    279,481,605.20x = 36,907,133,178,930,320
  5. Step 5: Solve for x
    x = 36,907,133,178,930,320/279,481,605.20
  6. Step 6: Final answer
    x = 132,055,679.13

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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.