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Finding the Third Proportional to 163,470 and 253,224

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Solution

The third proportional to 163,470 and 253,224 is: 392,257.87

Step by Step Solution

  1. Step 1: Write the proportion equation
    163,470 : 253,224 = 253,224 : x
  2. Step 2: Convert to fraction form
    163,470/253,224 = 253,224/x
  3. Step 3: Cross multiply
    163,470x = 253,224 × 253,224
  4. Step 4: Simplify right side
    163,470x = 64,122,394,176
  5. Step 5: Solve for x
    x = 64,122,394,176/163,470
  6. Step 6: Final answer
    x = 392,257.87

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Why These Related Problems?

These problems maintain the same ratio (1.55) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.