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Finding the Third Proportional to 77,777.44 and 166,216.50

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Solution

The third proportional to 77,777.44 and 166,216.50 is: 355,217.73

Step by Step Solution

  1. Step 1: Write the proportion equation
    77,777.44 : 166,216.50 = 166,216.50 : x
  2. Step 2: Convert to fraction form
    77,777.44/166,216.50 = 166,216.50/x
  3. Step 3: Cross multiply
    77,777.44x = 166,216.50 × 166,216.50
  4. Step 4: Simplify right side
    77,777.44x = 27,627,924,872.25
  5. Step 5: Solve for x
    x = 27,627,924,872.25/77,777.44
  6. Step 6: Final answer
    x = 355,217.73

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Why These Related Problems?

These problems maintain the same ratio (2.14) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.