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Finding the Fourth Proportional to 110,747.40, 166,121.10 and 110,091.30

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Solution

The fourth proportional to 110,747.40, 166,121.10 and 110,091.30 is: 165,136.95

Step by Step Solution

  1. Step 1: Write the proportion equation
    110,747.40 : 166,121.10 = 110,091.30 : x
  2. Step 2: Convert to fraction form
    110,747.40/166,121.10 = 110,091.30/x
  3. Step 3: Cross multiply
    110,747.40x = 166,121.10 × 110,091.30
  4. Step 4: Simplify right side
    110,747.40x = 18,288,487,856.43
  5. Step 5: Solve for x
    x = 18,288,487,856.43/110,747.40
  6. Step 6: Final answer
    x = 165,136.95

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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.