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Finding the Third Proportional to 104,449 and 214,428

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Solution

The third proportional to 104,449 and 214,428 is: 440,208.78

Step by Step Solution

  1. Step 1: Write the proportion equation
    104,449 : 214,428 = 214,428 : x
  2. Step 2: Convert to fraction form
    104,449/214,428 = 214,428/x
  3. Step 3: Cross multiply
    104,449x = 214,428 × 214,428
  4. Step 4: Simplify right side
    104,449x = 45,979,367,184
  5. Step 5: Solve for x
    x = 45,979,367,184/104,449
  6. Step 6: Final answer
    x = 440,208.78

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Why These Related Problems?

These problems maintain the same ratio (2.05) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.