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Finding the Third Proportional to 74,202.75 and 164,412

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Solution

The third proportional to 74,202.75 and 164,412 is: 364,289.81

Step by Step Solution

  1. Step 1: Write the proportion equation
    74,202.75 : 164,412 = 164,412 : x
  2. Step 2: Convert to fraction form
    74,202.75/164,412 = 164,412/x
  3. Step 3: Cross multiply
    74,202.75x = 164,412 × 164,412
  4. Step 4: Simplify right side
    74,202.75x = 27,031,305,744
  5. Step 5: Solve for x
    x = 27,031,305,744/74,202.75
  6. Step 6: Final answer
    x = 364,289.81

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Why These Related Problems?

These problems maintain the same ratio (2.22) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.