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Finding the Third Proportional to 83,221.88 and 179,745.75

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Solution

The third proportional to 83,221.88 and 179,745.75 is: 388,221.66

Step by Step Solution

  1. Step 1: Write the proportion equation
    83,221.88 : 179,745.75 = 179,745.75 : x
  2. Step 2: Convert to fraction form
    83,221.88/179,745.75 = 179,745.75/x
  3. Step 3: Cross multiply
    83,221.88x = 179,745.75 × 179,745.75
  4. Step 4: Simplify right side
    83,221.88x = 32,308,534,643.06
  5. Step 5: Solve for x
    x = 32,308,534,643.06/83,221.88
  6. Step 6: Final answer
    x = 388,221.66

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Why These Related Problems?

These problems maintain the same ratio (2.16) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.