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Finding the Third Proportional to 104,320 and 161,600

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Solution

The third proportional to 104,320 and 161,600 is: 250,331.29

Step by Step Solution

  1. Step 1: Write the proportion equation
    104,320 : 161,600 = 161,600 : x
  2. Step 2: Convert to fraction form
    104,320/161,600 = 161,600/x
  3. Step 3: Cross multiply
    104,320x = 161,600 × 161,600
  4. Step 4: Simplify right side
    104,320x = 26,114,560,000
  5. Step 5: Solve for x
    x = 26,114,560,000/104,320
  6. Step 6: Final answer
    x = 250,331.29

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Why These Related Problems?

These problems maintain the same ratio (1.55) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.