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Finding the Third Proportional to 74,824 and 164,408

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Solution

The third proportional to 74,824 and 164,408 is: 361,247.60

Step by Step Solution

  1. Step 1: Write the proportion equation
    74,824 : 164,408 = 164,408 : x
  2. Step 2: Convert to fraction form
    74,824/164,408 = 164,408/x
  3. Step 3: Cross multiply
    74,824x = 164,408 × 164,408
  4. Step 4: Simplify right side
    74,824x = 27,029,990,464
  5. Step 5: Solve for x
    x = 27,029,990,464/74,824
  6. Step 6: Final answer
    x = 361,247.60

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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.