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Finding the Fourth Proportional to 181,992.62, 272,801.52 and 69,642.18

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Solution

The fourth proportional to 181,992.62, 272,801.52 and 69,642.18 is: 104,391.55

Step by Step Solution

  1. Step 1: Write the proportion equation
    181,992.62 : 272,801.52 = 69,642.18 : x
  2. Step 2: Convert to fraction form
    181,992.62/272,801.52 = 69,642.18/x
  3. Step 3: Cross multiply
    181,992.62x = 272,801.52 × 69,642.18
  4. Step 4: Simplify right side
    181,992.62x = 18,998,492,560.11
  5. Step 5: Solve for x
    x = 18,998,492,560.11/181,992.62
  6. Step 6: Final answer
    x = 104,391.55

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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.