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Finding the Third Proportional to 71,254 and 156,728

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Solution

The third proportional to 71,254 and 156,728 is: 344,733.85

Step by Step Solution

  1. Step 1: Write the proportion equation
    71,254 : 156,728 = 156,728 : x
  2. Step 2: Convert to fraction form
    71,254/156,728 = 156,728/x
  3. Step 3: Cross multiply
    71,254x = 156,728 × 156,728
  4. Step 4: Simplify right side
    71,254x = 24,563,665,984
  5. Step 5: Solve for x
    x = 24,563,665,984/71,254
  6. Step 6: Final answer
    x = 344,733.85

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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.