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Finding the Fourth Proportional to 49,278,861.20, 73,918,291.80 and 49,278,861.20

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Solution

The fourth proportional to 49,278,861.20, 73,918,291.80 and 49,278,861.20 is: 73,918,291.80

Step by Step Solution

  1. Step 1: Write the proportion equation
    49,278,861.20 : 73,918,291.80 = 49,278,861.20 : x
  2. Step 2: Convert to fraction form
    49,278,861.20/73,918,291.80 = 49,278,861.20/x
  3. Step 3: Cross multiply
    49,278,861.20x = 73,918,291.80 × 49,278,861.20
  4. Step 4: Simplify right side
    49,278,861.20x = 3,642,609,241,753,298
  5. Step 5: Solve for x
    x = 3,642,609,241,753,298/49,278,861.20
  6. Step 6: Final answer
    x = 73,918,291.80

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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.