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Finding the Third Proportional to 120,696 and 180,234

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Solution

The third proportional to 120,696 and 180,234 is: 269,141.44

Step by Step Solution

  1. Step 1: Write the proportion equation
    120,696 : 180,234 = 180,234 : x
  2. Step 2: Convert to fraction form
    120,696/180,234 = 180,234/x
  3. Step 3: Cross multiply
    120,696x = 180,234 × 180,234
  4. Step 4: Simplify right side
    120,696x = 32,484,294,756
  5. Step 5: Solve for x
    x = 32,484,294,756/120,696
  6. Step 6: Final answer
    x = 269,141.44

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Why These Related Problems?

These problems maintain the same ratio (1.49) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.