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Finding the Third Proportional to 158,442 and 247,383

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Solution

The third proportional to 158,442 and 247,383 is: 386,250.80

Step by Step Solution

  1. Step 1: Write the proportion equation
    158,442 : 247,383 = 247,383 : x
  2. Step 2: Convert to fraction form
    158,442/247,383 = 247,383/x
  3. Step 3: Cross multiply
    158,442x = 247,383 × 247,383
  4. Step 4: Simplify right side
    158,442x = 61,198,348,689
  5. Step 5: Solve for x
    x = 61,198,348,689/158,442
  6. Step 6: Final answer
    x = 386,250.80

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Why These Related Problems?

These problems maintain the same ratio (1.56) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.