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Finding the Third Proportional to 112,394 and 240,781

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Solution

The third proportional to 112,394 and 240,781 is: 515,823.71

Step by Step Solution

  1. Step 1: Write the proportion equation
    112,394 : 240,781 = 240,781 : x
  2. Step 2: Convert to fraction form
    112,394/240,781 = 240,781/x
  3. Step 3: Cross multiply
    112,394x = 240,781 × 240,781
  4. Step 4: Simplify right side
    112,394x = 57,975,489,961
  5. Step 5: Solve for x
    x = 57,975,489,961/112,394
  6. Step 6: Final answer
    x = 515,823.71

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Why These Related Problems?

These problems maintain the same ratio (2.14) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.