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Finding the Fourth Proportional to 181,682.70, 272,524.14 and 81,726.11

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Solution

The fourth proportional to 181,682.70, 272,524.14 and 81,726.11 is: 122,589.21

Step by Step Solution

  1. Step 1: Write the proportion equation
    181,682.70 : 272,524.14 = 81,726.11 : x
  2. Step 2: Convert to fraction form
    181,682.70/272,524.14 = 81,726.11/x
  3. Step 3: Cross multiply
    181,682.70x = 272,524.14 × 81,726.11
  4. Step 4: Simplify right side
    181,682.70x = 22,272,338,978.12
  5. Step 5: Solve for x
    x = 22,272,338,978.12/181,682.70
  6. Step 6: Final answer
    x = 122,589.21

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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.