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Finding the Third Proportional to 68,417 and 103,532

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Solution

The third proportional to 68,417 and 103,532 is: 156,669.76

Step by Step Solution

  1. Step 1: Write the proportion equation
    68,417 : 103,532 = 103,532 : x
  2. Step 2: Convert to fraction form
    68,417/103,532 = 103,532/x
  3. Step 3: Cross multiply
    68,417x = 103,532 × 103,532
  4. Step 4: Simplify right side
    68,417x = 10,718,875,024
  5. Step 5: Solve for x
    x = 10,718,875,024/68,417
  6. Step 6: Final answer
    x = 156,669.76

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Why These Related Problems?

These problems maintain the same ratio (1.51) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.