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Finding the Fourth Proportional to 220,581.14, 330,854.43 and 80,371.22

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Solution

The fourth proportional to 220,581.14, 330,854.43 and 80,371.22 is: 120,550.53

Step by Step Solution

  1. Step 1: Write the proportion equation
    220,581.14 : 330,854.43 = 80,371.22 : x
  2. Step 2: Convert to fraction form
    220,581.14/330,854.43 = 80,371.22/x
  3. Step 3: Cross multiply
    220,581.14x = 330,854.43 × 80,371.22
  4. Step 4: Simplify right side
    220,581.14x = 26,591,174,181.50
  5. Step 5: Solve for x
    x = 26,591,174,181.50/220,581.14
  6. Step 6: Final answer
    x = 120,550.53

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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.