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Finding the Third Proportional to 71,326 and 110,381

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Solution

The third proportional to 71,326 and 110,381 is: 170,820.81

Step by Step Solution

  1. Step 1: Write the proportion equation
    71,326 : 110,381 = 110,381 : x
  2. Step 2: Convert to fraction form
    71,326/110,381 = 110,381/x
  3. Step 3: Cross multiply
    71,326x = 110,381 × 110,381
  4. Step 4: Simplify right side
    71,326x = 12,183,965,161
  5. Step 5: Solve for x
    x = 12,183,965,161/71,326
  6. Step 6: Final answer
    x = 170,820.81

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Why These Related Problems?

These problems maintain the same ratio (1.55) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.