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Finding the Fourth Proportional to 221,685.90, 332,528.85 and 132,893.70

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Solution

The fourth proportional to 221,685.90, 332,528.85 and 132,893.70 is: 199,340.55

Step by Step Solution

  1. Step 1: Write the proportion equation
    221,685.90 : 332,528.85 = 132,893.70 : x
  2. Step 2: Convert to fraction form
    221,685.90/332,528.85 = 132,893.70/x
  3. Step 3: Cross multiply
    221,685.90x = 332,528.85 × 132,893.70
  4. Step 4: Simplify right side
    221,685.90x = 44,190,989,233.25
  5. Step 5: Solve for x
    x = 44,190,989,233.25/221,685.90
  6. Step 6: Final answer
    x = 199,340.55

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1.5x scale

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.