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Finding the Third Proportional to 73,872 and 162,936

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Solution

The third proportional to 73,872 and 162,936 is: 359,380.28

Step by Step Solution

  1. Step 1: Write the proportion equation
    73,872 : 162,936 = 162,936 : x
  2. Step 2: Convert to fraction form
    73,872/162,936 = 162,936/x
  3. Step 3: Cross multiply
    73,872x = 162,936 × 162,936
  4. Step 4: Simplify right side
    73,872x = 26,548,140,096
  5. Step 5: Solve for x
    x = 26,548,140,096/73,872
  6. Step 6: Final answer
    x = 359,380.28

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Why These Related Problems?

These problems maintain the same ratio (2.21) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.