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Finding the Third Proportional to 71,168 and 103,080

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Solution

The third proportional to 71,168 and 103,080 is: 149,301.46

Step by Step Solution

  1. Step 1: Write the proportion equation
    71,168 : 103,080 = 103,080 : x
  2. Step 2: Convert to fraction form
    71,168/103,080 = 103,080/x
  3. Step 3: Cross multiply
    71,168x = 103,080 × 103,080
  4. Step 4: Simplify right side
    71,168x = 10,625,486,400
  5. Step 5: Solve for x
    x = 10,625,486,400/71,168
  6. Step 6: Final answer
    x = 149,301.46

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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.