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Finding the Fourth Proportional to 57,591,756.60, 86,387,634.90 and 53,812,620.60

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Solution

The fourth proportional to 57,591,756.60, 86,387,634.90 and 53,812,620.60 is: 80,718,930.90

Step by Step Solution

  1. Step 1: Write the proportion equation
    57,591,756.60 : 86,387,634.90 = 53,812,620.60 : x
  2. Step 2: Convert to fraction form
    57,591,756.60/86,387,634.90 = 53,812,620.60/x
  3. Step 3: Cross multiply
    57,591,756.60x = 86,387,634.90 × 53,812,620.60
  4. Step 4: Simplify right side
    57,591,756.60x = 4,648,745,021,405,019
  5. Step 5: Solve for x
    x = 4,648,745,021,405,019/57,591,756.60
  6. Step 6: Final answer
    x = 80,718,930.90

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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.