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Finding the Third Proportional to 67,889 and 149,164

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Solution

The third proportional to 67,889 and 149,164 is: 327,739.38

Step by Step Solution

  1. Step 1: Write the proportion equation
    67,889 : 149,164 = 149,164 : x
  2. Step 2: Convert to fraction form
    67,889/149,164 = 149,164/x
  3. Step 3: Cross multiply
    67,889x = 149,164 × 149,164
  4. Step 4: Simplify right side
    67,889x = 22,249,898,896
  5. Step 5: Solve for x
    x = 22,249,898,896/67,889
  6. Step 6: Final answer
    x = 327,739.38

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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.