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Finding the Third Proportional to 166,180 and 360,400

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Solution

The third proportional to 166,180 and 360,400 is: 781,611.26

Step by Step Solution

  1. Step 1: Write the proportion equation
    166,180 : 360,400 = 360,400 : x
  2. Step 2: Convert to fraction form
    166,180/360,400 = 360,400/x
  3. Step 3: Cross multiply
    166,180x = 360,400 × 360,400
  4. Step 4: Simplify right side
    166,180x = 129,888,160,000
  5. Step 5: Solve for x
    x = 129,888,160,000/166,180
  6. Step 6: Final answer
    x = 781,611.26

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Why These Related Problems?

These problems maintain the same ratio (2.17) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.