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Finding the Third Proportional to 116,780 and 255,374

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Solution

The third proportional to 116,780 and 255,374 is: 558,450.76

Step by Step Solution

  1. Step 1: Write the proportion equation
    116,780 : 255,374 = 255,374 : x
  2. Step 2: Convert to fraction form
    116,780/255,374 = 255,374/x
  3. Step 3: Cross multiply
    116,780x = 255,374 × 255,374
  4. Step 4: Simplify right side
    116,780x = 65,215,879,876
  5. Step 5: Solve for x
    x = 65,215,879,876/116,780
  6. Step 6: Final answer
    x = 558,450.76

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Why These Related Problems?

These problems maintain the same ratio (2.19) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.