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Finding the Third Proportional to 85,436.75 and 132,631.25

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Solution

The third proportional to 85,436.75 and 132,631.25 is: 205,895.57

Step by Step Solution

  1. Step 1: Write the proportion equation
    85,436.75 : 132,631.25 = 132,631.25 : x
  2. Step 2: Convert to fraction form
    85,436.75/132,631.25 = 132,631.25/x
  3. Step 3: Cross multiply
    85,436.75x = 132,631.25 × 132,631.25
  4. Step 4: Simplify right side
    85,436.75x = 17,591,048,476.56
  5. Step 5: Solve for x
    x = 17,591,048,476.56/85,436.75
  6. Step 6: Final answer
    x = 205,895.57

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Why These Related Problems?

These problems maintain the same ratio (1.55) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.