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Finding the Third Proportional to 89,538.75 and 135,461

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Solution

The third proportional to 89,538.75 and 135,461 is: 204,935.66

Step by Step Solution

  1. Step 1: Write the proportion equation
    89,538.75 : 135,461 = 135,461 : x
  2. Step 2: Convert to fraction form
    89,538.75/135,461 = 135,461/x
  3. Step 3: Cross multiply
    89,538.75x = 135,461 × 135,461
  4. Step 4: Simplify right side
    89,538.75x = 18,349,682,521
  5. Step 5: Solve for x
    x = 18,349,682,521/89,538.75
  6. Step 6: Final answer
    x = 204,935.66

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Why These Related Problems?

These problems maintain the same ratio (1.51) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.