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Finding the Third Proportional to 56,398 and 121,302

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Solution

The third proportional to 56,398 and 121,302 is: 260,898.88

Step by Step Solution

  1. Step 1: Write the proportion equation
    56,398 : 121,302 = 121,302 : x
  2. Step 2: Convert to fraction form
    56,398/121,302 = 121,302/x
  3. Step 3: Cross multiply
    56,398x = 121,302 × 121,302
  4. Step 4: Simplify right side
    56,398x = 14,714,175,204
  5. Step 5: Solve for x
    x = 14,714,175,204/56,398
  6. Step 6: Final answer
    x = 260,898.88

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Why These Related Problems?

These problems maintain the same ratio (2.15) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.