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Finding the Third Proportional to 71,188 and 103,110

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Solution

The third proportional to 71,188 and 103,110 is: 149,346.41

Step by Step Solution

  1. Step 1: Write the proportion equation
    71,188 : 103,110 = 103,110 : x
  2. Step 2: Convert to fraction form
    71,188/103,110 = 103,110/x
  3. Step 3: Cross multiply
    71,188x = 103,110 × 103,110
  4. Step 4: Simplify right side
    71,188x = 10,631,672,100
  5. Step 5: Solve for x
    x = 10,631,672,100/71,188
  6. Step 6: Final answer
    x = 149,346.41

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Why These Related Problems?

These problems maintain the same ratio (1.45) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.