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Finding the Third Proportional to 149,722 and 238,108

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Solution

The third proportional to 149,722 and 238,108 is: 378,671.27

Step by Step Solution

  1. Step 1: Write the proportion equation
    149,722 : 238,108 = 238,108 : x
  2. Step 2: Convert to fraction form
    149,722/238,108 = 238,108/x
  3. Step 3: Cross multiply
    149,722x = 238,108 × 238,108
  4. Step 4: Simplify right side
    149,722x = 56,695,419,664
  5. Step 5: Solve for x
    x = 56,695,419,664/149,722
  6. Step 6: Final answer
    x = 378,671.27

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Why These Related Problems?

These problems maintain the same ratio (1.59) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.