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Finding the Third Proportional to 71,907 and 156,933

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Solution

The third proportional to 71,907 and 156,933 is: 342,497.48

Step by Step Solution

  1. Step 1: Write the proportion equation
    71,907 : 156,933 = 156,933 : x
  2. Step 2: Convert to fraction form
    71,907/156,933 = 156,933/x
  3. Step 3: Cross multiply
    71,907x = 156,933 × 156,933
  4. Step 4: Simplify right side
    71,907x = 24,627,966,489
  5. Step 5: Solve for x
    x = 24,627,966,489/71,907
  6. Step 6: Final answer
    x = 342,497.48

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Why These Related Problems?

These problems maintain the same ratio (2.18) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.