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Finding the Fourth Proportional to 181,992.80, 272,989.20 and 162,747.20

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Solution

The fourth proportional to 181,992.80, 272,989.20 and 162,747.20 is: 244,120.80

Step by Step Solution

  1. Step 1: Write the proportion equation
    181,992.80 : 272,989.20 = 162,747.20 : x
  2. Step 2: Convert to fraction form
    181,992.80/272,989.20 = 162,747.20/x
  3. Step 3: Cross multiply
    181,992.80x = 272,989.20 × 162,747.20
  4. Step 4: Simplify right side
    181,992.80x = 44,428,227,930.24
  5. Step 5: Solve for x
    x = 44,428,227,930.24/181,992.80
  6. Step 6: Final answer
    x = 244,120.80

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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.