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Finding the Fourth Proportional to 89,793.93, 134,691.56 and 39,860.60

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Solution

The fourth proportional to 89,793.93, 134,691.56 and 39,860.60 is: 59,791.20

Step by Step Solution

  1. Step 1: Write the proportion equation
    89,793.93 : 134,691.56 = 39,860.60 : x
  2. Step 2: Convert to fraction form
    89,793.93/134,691.56 = 39,860.60/x
  3. Step 3: Cross multiply
    89,793.93x = 134,691.56 × 39,860.60
  4. Step 4: Simplify right side
    89,793.93x = 5,368,886,396.54
  5. Step 5: Solve for x
    x = 5,368,886,396.54/89,793.93
  6. Step 6: Final answer
    x = 59,791.20

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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.