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Finding the Third Proportional to 156,956 and 239,538

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Solution

The third proportional to 156,956 and 239,538 is: 365,570.31

Step by Step Solution

  1. Step 1: Write the proportion equation
    156,956 : 239,538 = 239,538 : x
  2. Step 2: Convert to fraction form
    156,956/239,538 = 239,538/x
  3. Step 3: Cross multiply
    156,956x = 239,538 × 239,538
  4. Step 4: Simplify right side
    156,956x = 57,378,453,444
  5. Step 5: Solve for x
    x = 57,378,453,444/156,956
  6. Step 6: Final answer
    x = 365,570.31

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Why These Related Problems?

These problems maintain the same ratio (1.53) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.