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Finding the Fourth Proportional to 265,868.92, 398,191.02 and 132,335.56

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Solution

The fourth proportional to 265,868.92, 398,191.02 and 132,335.56 is: 198,198.54

Step by Step Solution

  1. Step 1: Write the proportion equation
    265,868.92 : 398,191.02 = 132,335.56 : x
  2. Step 2: Convert to fraction form
    265,868.92/398,191.02 = 132,335.56/x
  3. Step 3: Cross multiply
    265,868.92x = 398,191.02 × 132,335.56
  4. Step 4: Simplify right side
    265,868.92x = 52,694,831,618.67
  5. Step 5: Solve for x
    x = 52,694,831,618.67/265,868.92
  6. Step 6: Final answer
    x = 198,198.54

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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.