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Finding the Third Proportional to 85,062.75 and 185,689.75

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Solution

The third proportional to 85,062.75 and 185,689.75 is: 405,355.85

Step by Step Solution

  1. Step 1: Write the proportion equation
    85,062.75 : 185,689.75 = 185,689.75 : x
  2. Step 2: Convert to fraction form
    85,062.75/185,689.75 = 185,689.75/x
  3. Step 3: Cross multiply
    85,062.75x = 185,689.75 × 185,689.75
  4. Step 4: Simplify right side
    85,062.75x = 34,480,683,255.06
  5. Step 5: Solve for x
    x = 34,480,683,255.06/85,062.75
  6. Step 6: Final answer
    x = 405,355.85

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Why These Related Problems?

These problems maintain the same ratio (2.18) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.