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Finding the Third Proportional to 158,768 and 339,372

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Solution

The third proportional to 158,768 and 339,372 is: 725,419.19

Step by Step Solution

  1. Step 1: Write the proportion equation
    158,768 : 339,372 = 339,372 : x
  2. Step 2: Convert to fraction form
    158,768/339,372 = 339,372/x
  3. Step 3: Cross multiply
    158,768x = 339,372 × 339,372
  4. Step 4: Simplify right side
    158,768x = 115,173,354,384
  5. Step 5: Solve for x
    x = 115,173,354,384/158,768
  6. Step 6: Final answer
    x = 725,419.19

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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.