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Finding the Fourth Proportional to 220,975.80, 331,269.30 and 132,264.60

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Solution

The fourth proportional to 220,975.80, 331,269.30 and 132,264.60 is: 198,280.54

Step by Step Solution

  1. Step 1: Write the proportion equation
    220,975.80 : 331,269.30 = 132,264.60 : x
  2. Step 2: Convert to fraction form
    220,975.80/331,269.30 = 132,264.60/x
  3. Step 3: Cross multiply
    220,975.80x = 331,269.30 × 132,264.60
  4. Step 4: Simplify right side
    220,975.80x = 43,815,201,456.78
  5. Step 5: Solve for x
    x = 43,815,201,456.78/220,975.80
  6. Step 6: Final answer
    x = 198,280.54

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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.