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Finding the Third Proportional to 68,441 and 91,549

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Solution

The third proportional to 68,441 and 91,549 is: 122,459.04

Step by Step Solution

  1. Step 1: Write the proportion equation
    68,441 : 91,549 = 91,549 : x
  2. Step 2: Convert to fraction form
    68,441/91,549 = 91,549/x
  3. Step 3: Cross multiply
    68,441x = 91,549 × 91,549
  4. Step 4: Simplify right side
    68,441x = 8,381,219,401
  5. Step 5: Solve for x
    x = 8,381,219,401/68,441
  6. Step 6: Final answer
    x = 122,459.04

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Why These Related Problems?

These problems maintain the same ratio (1.34) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.