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Finding the Fourth Proportional to 174,524.60, 261,863.70 and 80,982.20

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Solution

The fourth proportional to 174,524.60, 261,863.70 and 80,982.20 is: 121,508.94

Step by Step Solution

  1. Step 1: Write the proportion equation
    174,524.60 : 261,863.70 = 80,982.20 : x
  2. Step 2: Convert to fraction form
    174,524.60/261,863.70 = 80,982.20/x
  3. Step 3: Cross multiply
    174,524.60x = 261,863.70 × 80,982.20
  4. Step 4: Simplify right side
    174,524.60x = 21,206,298,526.14
  5. Step 5: Solve for x
    x = 21,206,298,526.14/174,524.60
  6. Step 6: Final answer
    x = 121,508.94

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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.