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Finding the Third Proportional to 195,728 and 272,344

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Solution

The third proportional to 195,728 and 272,344 is: 378,950.66

Step by Step Solution

  1. Step 1: Write the proportion equation
    195,728 : 272,344 = 272,344 : x
  2. Step 2: Convert to fraction form
    195,728/272,344 = 272,344/x
  3. Step 3: Cross multiply
    195,728x = 272,344 × 272,344
  4. Step 4: Simplify right side
    195,728x = 74,171,254,336
  5. Step 5: Solve for x
    x = 74,171,254,336/195,728
  6. Step 6: Final answer
    x = 378,950.66

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Why These Related Problems?

These problems maintain the same ratio (1.39) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.