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Finding the Fourth Proportional to 61,481.92, 92,121.60 and 59,178.88

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Solution

The fourth proportional to 61,481.92, 92,121.60 and 59,178.88 is: 88,670.83

Step by Step Solution

  1. Step 1: Write the proportion equation
    61,481.92 : 92,121.60 = 59,178.88 : x
  2. Step 2: Convert to fraction form
    61,481.92/92,121.60 = 59,178.88/x
  3. Step 3: Cross multiply
    61,481.92x = 92,121.60 × 59,178.88
  4. Step 4: Simplify right side
    61,481.92x = 5,451,653,111.81
  5. Step 5: Solve for x
    x = 5,451,653,111.81/61,481.92
  6. Step 6: Final answer
    x = 88,670.83

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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.