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Finding the Third Proportional to 73,880 and 162,520

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Solution

The third proportional to 73,880 and 162,520 is: 357,508.80

Step by Step Solution

  1. Step 1: Write the proportion equation
    73,880 : 162,520 = 162,520 : x
  2. Step 2: Convert to fraction form
    73,880/162,520 = 162,520/x
  3. Step 3: Cross multiply
    73,880x = 162,520 × 162,520
  4. Step 4: Simplify right side
    73,880x = 26,412,750,400
  5. Step 5: Solve for x
    x = 26,412,750,400/73,880
  6. Step 6: Final answer
    x = 357,508.80

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Why These Related Problems?

These problems maintain the same ratio (2.20) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.