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Finding the Third Proportional to 86,248 and 131,676

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Solution

The third proportional to 86,248 and 131,676 is: 201,031.55

Step by Step Solution

  1. Step 1: Write the proportion equation
    86,248 : 131,676 = 131,676 : x
  2. Step 2: Convert to fraction form
    86,248/131,676 = 131,676/x
  3. Step 3: Cross multiply
    86,248x = 131,676 × 131,676
  4. Step 4: Simplify right side
    86,248x = 17,338,568,976
  5. Step 5: Solve for x
    x = 17,338,568,976/86,248
  6. Step 6: Final answer
    x = 201,031.55

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Why These Related Problems?

These problems maintain the same ratio (1.53) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.