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Finding the Third Proportional to 74,400 and 165,353

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Solution

The third proportional to 74,400 and 165,353 is: 367,494.82

Step by Step Solution

  1. Step 1: Write the proportion equation
    74,400 : 165,353 = 165,353 : x
  2. Step 2: Convert to fraction form
    74,400/165,353 = 165,353/x
  3. Step 3: Cross multiply
    74,400x = 165,353 × 165,353
  4. Step 4: Simplify right side
    74,400x = 27,341,614,609
  5. Step 5: Solve for x
    x = 27,341,614,609/74,400
  6. Step 6: Final answer
    x = 367,494.82

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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.