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Finding the Third Proportional to 42,136 and 92,745

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Solution

The third proportional to 42,136 and 92,745 is: 204,139.81

Step by Step Solution

  1. Step 1: Write the proportion equation
    42,136 : 92,745 = 92,745 : x
  2. Step 2: Convert to fraction form
    42,136/92,745 = 92,745/x
  3. Step 3: Cross multiply
    42,136x = 92,745 × 92,745
  4. Step 4: Simplify right side
    42,136x = 8,601,635,025
  5. Step 5: Solve for x
    x = 8,601,635,025/42,136
  6. Step 6: Final answer
    x = 204,139.81

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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.