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Finding the Fourth Proportional to 110,793.80, 166,158.30 and 39,708.20

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Solution

The fourth proportional to 110,793.80, 166,158.30 and 39,708.20 is: 59,550.69

Step by Step Solution

  1. Step 1: Write the proportion equation
    110,793.80 : 166,158.30 = 39,708.20 : x
  2. Step 2: Convert to fraction form
    110,793.80/166,158.30 = 39,708.20/x
  3. Step 3: Cross multiply
    110,793.80x = 166,158.30 × 39,708.20
  4. Step 4: Simplify right side
    110,793.80x = 6,597,847,008.06
  5. Step 5: Solve for x
    x = 6,597,847,008.06/110,793.80
  6. Step 6: Final answer
    x = 59,550.69

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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.