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Finding the Third Proportional to 74,814 and 164,388

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Solution

The third proportional to 74,814 and 164,388 is: 361,207.99

Step by Step Solution

  1. Step 1: Write the proportion equation
    74,814 : 164,388 = 164,388 : x
  2. Step 2: Convert to fraction form
    74,814/164,388 = 164,388/x
  3. Step 3: Cross multiply
    74,814x = 164,388 × 164,388
  4. Step 4: Simplify right side
    74,814x = 27,023,414,544
  5. Step 5: Solve for x
    x = 27,023,414,544/74,814
  6. Step 6: Final answer
    x = 361,207.99

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Why These Related Problems?

These problems maintain the same ratio (2.20) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.