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Finding the Third Proportional to 74,846 and 160,780

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Solution

The third proportional to 74,846 and 160,780 is: 345,378.62

Step by Step Solution

  1. Step 1: Write the proportion equation
    74,846 : 160,780 = 160,780 : x
  2. Step 2: Convert to fraction form
    74,846/160,780 = 160,780/x
  3. Step 3: Cross multiply
    74,846x = 160,780 × 160,780
  4. Step 4: Simplify right side
    74,846x = 25,850,208,400
  5. Step 5: Solve for x
    x = 25,850,208,400/74,846
  6. Step 6: Final answer
    x = 345,378.62

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Why These Related Problems?

These problems maintain the same ratio (2.15) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.