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Finding the Third Proportional to 76,890.50 and 166,416.50

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Solution

The third proportional to 76,890.50 and 166,416.50 is: 360,180.41

Step by Step Solution

  1. Step 1: Write the proportion equation
    76,890.50 : 166,416.50 = 166,416.50 : x
  2. Step 2: Convert to fraction form
    76,890.50/166,416.50 = 166,416.50/x
  3. Step 3: Cross multiply
    76,890.50x = 166,416.50 × 166,416.50
  4. Step 4: Simplify right side
    76,890.50x = 27,694,451,472.25
  5. Step 5: Solve for x
    x = 27,694,451,472.25/76,890.50
  6. Step 6: Final answer
    x = 360,180.41

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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.