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Finding the Fourth Proportional to 181,680.90, 272,262.15 and 133,923.30

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Solution

The fourth proportional to 181,680.90, 272,262.15 and 133,923.30 is: 200,693.88

Step by Step Solution

  1. Step 1: Write the proportion equation
    181,680.90 : 272,262.15 = 133,923.30 : x
  2. Step 2: Convert to fraction form
    181,680.90/272,262.15 = 133,923.30/x
  3. Step 3: Cross multiply
    181,680.90x = 272,262.15 × 133,923.30
  4. Step 4: Simplify right side
    181,680.90x = 36,462,245,593.10
  5. Step 5: Solve for x
    x = 36,462,245,593.10/181,680.90
  6. Step 6: Final answer
    x = 200,693.88

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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.