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Finding the Third Proportional to 158,772 and 339,372

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Solution

The third proportional to 158,772 and 339,372 is: 725,400.92

Step by Step Solution

  1. Step 1: Write the proportion equation
    158,772 : 339,372 = 339,372 : x
  2. Step 2: Convert to fraction form
    158,772/339,372 = 339,372/x
  3. Step 3: Cross multiply
    158,772x = 339,372 × 339,372
  4. Step 4: Simplify right side
    158,772x = 115,173,354,384
  5. Step 5: Solve for x
    x = 115,173,354,384/158,772
  6. Step 6: Final answer
    x = 725,400.92

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Why These Related Problems?

These problems maintain the same ratio (2.14) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.