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Finding the Third Proportional to 167,240 and 360,400

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Solution

The third proportional to 167,240 and 360,400 is: 776,657.26

Step by Step Solution

  1. Step 1: Write the proportion equation
    167,240 : 360,400 = 360,400 : x
  2. Step 2: Convert to fraction form
    167,240/360,400 = 360,400/x
  3. Step 3: Cross multiply
    167,240x = 360,400 × 360,400
  4. Step 4: Simplify right side
    167,240x = 129,888,160,000
  5. Step 5: Solve for x
    x = 129,888,160,000/167,240
  6. Step 6: Final answer
    x = 776,657.26

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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.