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Finding the Third Proportional to 68,992 and 106,944

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Solution

The third proportional to 68,992 and 106,944 is: 165,773.12

Step by Step Solution

  1. Step 1: Write the proportion equation
    68,992 : 106,944 = 106,944 : x
  2. Step 2: Convert to fraction form
    68,992/106,944 = 106,944/x
  3. Step 3: Cross multiply
    68,992x = 106,944 × 106,944
  4. Step 4: Simplify right side
    68,992x = 11,437,019,136
  5. Step 5: Solve for x
    x = 11,437,019,136/68,992
  6. Step 6: Final answer
    x = 165,773.12

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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.