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Finding the Fourth Proportional to 110,691.77, 166,099.14 and 68,594.72

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Solution

The fourth proportional to 110,691.77, 166,099.14 and 68,594.72 is: 102,930.18

Step by Step Solution

  1. Step 1: Write the proportion equation
    110,691.77 : 166,099.14 = 68,594.72 : x
  2. Step 2: Convert to fraction form
    110,691.77/166,099.14 = 68,594.72/x
  3. Step 3: Cross multiply
    110,691.77x = 166,099.14 × 68,594.72
  4. Step 4: Simplify right side
    110,691.77x = 11,393,523,170.05
  5. Step 5: Solve for x
    x = 11,393,523,170.05/110,691.77
  6. Step 6: Final answer
    x = 102,930.18

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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.