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Finding the Fourth Proportional to 181,912.32, 272,920.32 and 132,042.24

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Solution

The fourth proportional to 181,912.32, 272,920.32 and 132,042.24 is: 198,100.99

Step by Step Solution

  1. Step 1: Write the proportion equation
    181,912.32 : 272,920.32 = 132,042.24 : x
  2. Step 2: Convert to fraction form
    181,912.32/272,920.32 = 132,042.24/x
  3. Step 3: Cross multiply
    181,912.32x = 272,920.32 × 132,042.24
  4. Step 4: Simplify right side
    181,912.32x = 36,037,010,394.32
  5. Step 5: Solve for x
    x = 36,037,010,394.32/181,912.32
  6. Step 6: Final answer
    x = 198,100.99

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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.