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Finding the Third Proportional to 76,919.50 and 166,961

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Solution

The third proportional to 76,919.50 and 166,961 is: 362,404.53

Step by Step Solution

  1. Step 1: Write the proportion equation
    76,919.50 : 166,961 = 166,961 : x
  2. Step 2: Convert to fraction form
    76,919.50/166,961 = 166,961/x
  3. Step 3: Cross multiply
    76,919.50x = 166,961 × 166,961
  4. Step 4: Simplify right side
    76,919.50x = 27,875,975,521
  5. Step 5: Solve for x
    x = 27,875,975,521/76,919.50
  6. Step 6: Final answer
    x = 362,404.53

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Why These Related Problems?

These problems maintain the same ratio (2.17) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.