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Finding the Fourth Proportional to 80,764.80, 121,163.40 and 24,608.40

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Solution

The fourth proportional to 80,764.80, 121,163.40 and 24,608.40 is: 36,917.54

Step by Step Solution

  1. Step 1: Write the proportion equation
    80,764.80 : 121,163.40 = 24,608.40 : x
  2. Step 2: Convert to fraction form
    80,764.80/121,163.40 = 24,608.40/x
  3. Step 3: Cross multiply
    80,764.80x = 121,163.40 × 24,608.40
  4. Step 4: Simplify right side
    80,764.80x = 2,981,637,412.56
  5. Step 5: Solve for x
    x = 2,981,637,412.56/80,764.80
  6. Step 6: Final answer
    x = 36,917.54

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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.