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Finding the Third Proportional to 89,741.25 and 188,709.75

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Solution

The third proportional to 89,741.25 and 188,709.75 is: 396,822.75

Step by Step Solution

  1. Step 1: Write the proportion equation
    89,741.25 : 188,709.75 = 188,709.75 : x
  2. Step 2: Convert to fraction form
    89,741.25/188,709.75 = 188,709.75/x
  3. Step 3: Cross multiply
    89,741.25x = 188,709.75 × 188,709.75
  4. Step 4: Simplify right side
    89,741.25x = 35,611,369,745.06
  5. Step 5: Solve for x
    x = 35,611,369,745.06/89,741.25
  6. Step 6: Final answer
    x = 396,822.75

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Why These Related Problems?

These problems maintain the same ratio (2.10) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.