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Finding the Third Proportional to 163,474 and 219,684

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Solution

The third proportional to 163,474 and 219,684 is: 295,221.62

Step by Step Solution

  1. Step 1: Write the proportion equation
    163,474 : 219,684 = 219,684 : x
  2. Step 2: Convert to fraction form
    163,474/219,684 = 219,684/x
  3. Step 3: Cross multiply
    163,474x = 219,684 × 219,684
  4. Step 4: Simplify right side
    163,474x = 48,261,059,856
  5. Step 5: Solve for x
    x = 48,261,059,856/163,474
  6. Step 6: Final answer
    x = 295,221.62

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Why These Related Problems?

These problems maintain the same ratio (1.34) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.