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Finding the Third Proportional to 61,890 and 132,096

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Solution

The third proportional to 61,890 and 132,096 is: 281,941.40

Step by Step Solution

  1. Step 1: Write the proportion equation
    61,890 : 132,096 = 132,096 : x
  2. Step 2: Convert to fraction form
    61,890/132,096 = 132,096/x
  3. Step 3: Cross multiply
    61,890x = 132,096 × 132,096
  4. Step 4: Simplify right side
    61,890x = 17,449,353,216
  5. Step 5: Solve for x
    x = 17,449,353,216/61,890
  6. Step 6: Final answer
    x = 281,941.40

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Why These Related Problems?

These problems maintain the same ratio (2.13) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.