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Finding the Third Proportional to 74,460 and 162,744

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Solution

The third proportional to 74,460 and 162,744 is: 355,702.52

Step by Step Solution

  1. Step 1: Write the proportion equation
    74,460 : 162,744 = 162,744 : x
  2. Step 2: Convert to fraction form
    74,460/162,744 = 162,744/x
  3. Step 3: Cross multiply
    74,460x = 162,744 × 162,744
  4. Step 4: Simplify right side
    74,460x = 26,485,609,536
  5. Step 5: Solve for x
    x = 26,485,609,536/74,460
  6. Step 6: Final answer
    x = 355,702.52

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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.