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Finding the Third Proportional to 49,239 and 107,389

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Solution

The third proportional to 49,239 and 107,389 is: 234,212.66

Step by Step Solution

  1. Step 1: Write the proportion equation
    49,239 : 107,389 = 107,389 : x
  2. Step 2: Convert to fraction form
    49,239/107,389 = 107,389/x
  3. Step 3: Cross multiply
    49,239x = 107,389 × 107,389
  4. Step 4: Simplify right side
    49,239x = 11,532,397,321
  5. Step 5: Solve for x
    x = 11,532,397,321/49,239
  6. Step 6: Final answer
    x = 234,212.66

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Why These Related Problems?

These problems maintain the same ratio (2.18) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.