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Finding the Third Proportional to 102,840 and 225,374

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Solution

The third proportional to 102,840 and 225,374 is: 493,907.43

Step by Step Solution

  1. Step 1: Write the proportion equation
    102,840 : 225,374 = 225,374 : x
  2. Step 2: Convert to fraction form
    102,840/225,374 = 225,374/x
  3. Step 3: Cross multiply
    102,840x = 225,374 × 225,374
  4. Step 4: Simplify right side
    102,840x = 50,793,439,876
  5. Step 5: Solve for x
    x = 50,793,439,876/102,840
  6. Step 6: Final answer
    x = 493,907.43

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Why These Related Problems?

These problems maintain the same ratio (2.19) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.