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Finding the Fourth Proportional to 11,541,791.60, 17,289,877.80 and 10,123,449.20

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Solution

The fourth proportional to 11,541,791.60, 17,289,877.80 and 10,123,449.20 is: 15,165,167.22

Step by Step Solution

  1. Step 1: Write the proportion equation
    11,541,791.60 : 17,289,877.80 = 10,123,449.20 : x
  2. Step 2: Convert to fraction form
    11,541,791.60/17,289,877.80 = 10,123,449.20/x
  3. Step 3: Cross multiply
    11,541,791.60x = 17,289,877.80 × 10,123,449.20
  4. Step 4: Simplify right side
    11,541,791.60x = 175,033,199,582,507.75
  5. Step 5: Solve for x
    x = 175,033,199,582,507.75/11,541,791.60
  6. Step 6: Final answer
    x = 15,165,167.22

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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.