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Finding the Third Proportional to 91,745 and 135,916

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Solution

The third proportional to 91,745 and 135,916 is: 201,353.31

Step by Step Solution

  1. Step 1: Write the proportion equation
    91,745 : 135,916 = 135,916 : x
  2. Step 2: Convert to fraction form
    91,745/135,916 = 135,916/x
  3. Step 3: Cross multiply
    91,745x = 135,916 × 135,916
  4. Step 4: Simplify right side
    91,745x = 18,473,159,056
  5. Step 5: Solve for x
    x = 18,473,159,056/91,745
  6. Step 6: Final answer
    x = 201,353.31

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Why These Related Problems?

These problems maintain the same ratio (1.48) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.