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Finding the Fourth Proportional to 181,818.90, 272,772.09 and 57,159.90

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Solution

The fourth proportional to 181,818.90, 272,772.09 and 57,159.90 is: 85,753.60

Step by Step Solution

  1. Step 1: Write the proportion equation
    181,818.90 : 272,772.09 = 57,159.90 : x
  2. Step 2: Convert to fraction form
    181,818.90/272,772.09 = 57,159.90/x
  3. Step 3: Cross multiply
    181,818.90x = 272,772.09 × 57,159.90
  4. Step 4: Simplify right side
    181,818.90x = 15,591,625,387.19
  5. Step 5: Solve for x
    x = 15,591,625,387.19/181,818.90
  6. Step 6: Final answer
    x = 85,753.60

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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.