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Finding the Fourth Proportional to 218,087.73, 327,175.47 and 77,842.71

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Solution

The fourth proportional to 218,087.73, 327,175.47 and 77,842.71 is: 116,779.73

Step by Step Solution

  1. Step 1: Write the proportion equation
    218,087.73 : 327,175.47 = 77,842.71 : x
  2. Step 2: Convert to fraction form
    218,087.73/327,175.47 = 77,842.71/x
  3. Step 3: Cross multiply
    218,087.73x = 327,175.47 × 77,842.71
  4. Step 4: Simplify right side
    218,087.73x = 25,468,225,230.32
  5. Step 5: Solve for x
    x = 25,468,225,230.32/218,087.73
  6. Step 6: Final answer
    x = 116,779.73

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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.