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Finding the Third Proportional to 101,376 and 215,868

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Solution

The third proportional to 101,376 and 215,868 is: 459,664.94

Step by Step Solution

  1. Step 1: Write the proportion equation
    101,376 : 215,868 = 215,868 : x
  2. Step 2: Convert to fraction form
    101,376/215,868 = 215,868/x
  3. Step 3: Cross multiply
    101,376x = 215,868 × 215,868
  4. Step 4: Simplify right side
    101,376x = 46,598,993,424
  5. Step 5: Solve for x
    x = 46,598,993,424/101,376
  6. Step 6: Final answer
    x = 459,664.94

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Why These Related Problems?

These problems maintain the same ratio (2.13) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.