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Finding the Third Proportional to 156,864 and 239,996

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Solution

The third proportional to 156,864 and 239,996 is: 367,184.82

Step by Step Solution

  1. Step 1: Write the proportion equation
    156,864 : 239,996 = 239,996 : x
  2. Step 2: Convert to fraction form
    156,864/239,996 = 239,996/x
  3. Step 3: Cross multiply
    156,864x = 239,996 × 239,996
  4. Step 4: Simplify right side
    156,864x = 57,598,080,016
  5. Step 5: Solve for x
    x = 57,598,080,016/156,864
  6. Step 6: Final answer
    x = 367,184.82

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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.