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Finding the Third Proportional to 74,828 and 160,609

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Solution

The third proportional to 74,828 and 160,609 is: 344,727.25

Step by Step Solution

  1. Step 1: Write the proportion equation
    74,828 : 160,609 = 160,609 : x
  2. Step 2: Convert to fraction form
    74,828/160,609 = 160,609/x
  3. Step 3: Cross multiply
    74,828x = 160,609 × 160,609
  4. Step 4: Simplify right side
    74,828x = 25,795,250,881
  5. Step 5: Solve for x
    x = 25,795,250,881/74,828
  6. Step 6: Final answer
    x = 344,727.25

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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.