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Finding the Third Proportional to 86,281.88 and 188,709.75

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Solution

The third proportional to 86,281.88 and 188,709.75 is: 412,732.91

Step by Step Solution

  1. Step 1: Write the proportion equation
    86,281.88 : 188,709.75 = 188,709.75 : x
  2. Step 2: Convert to fraction form
    86,281.88/188,709.75 = 188,709.75/x
  3. Step 3: Cross multiply
    86,281.88x = 188,709.75 × 188,709.75
  4. Step 4: Simplify right side
    86,281.88x = 35,611,369,745.06
  5. Step 5: Solve for x
    x = 35,611,369,745.06/86,281.88
  6. Step 6: Final answer
    x = 412,732.91

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Why These Related Problems?

These problems maintain the same ratio (2.19) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.