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Finding the Third Proportional to 155,118 and 246,021

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Solution

The third proportional to 155,118 and 246,021 is: 390,195.42

Step by Step Solution

  1. Step 1: Write the proportion equation
    155,118 : 246,021 = 246,021 : x
  2. Step 2: Convert to fraction form
    155,118/246,021 = 246,021/x
  3. Step 3: Cross multiply
    155,118x = 246,021 × 246,021
  4. Step 4: Simplify right side
    155,118x = 60,526,332,441
  5. Step 5: Solve for x
    x = 60,526,332,441/155,118
  6. Step 6: Final answer
    x = 390,195.42

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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.