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Finding the Third Proportional to 132,432 and 198,942

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Solution

The third proportional to 132,432 and 198,942 is: 298,854.65

Step by Step Solution

  1. Step 1: Write the proportion equation
    132,432 : 198,942 = 198,942 : x
  2. Step 2: Convert to fraction form
    132,432/198,942 = 198,942/x
  3. Step 3: Cross multiply
    132,432x = 198,942 × 198,942
  4. Step 4: Simplify right side
    132,432x = 39,577,919,364
  5. Step 5: Solve for x
    x = 39,577,919,364/132,432
  6. Step 6: Final answer
    x = 298,854.65

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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.