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Finding the Third Proportional to 56,920 and 124,208

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Solution

The third proportional to 56,920 and 124,208 is: 271,040.54

Step by Step Solution

  1. Step 1: Write the proportion equation
    56,920 : 124,208 = 124,208 : x
  2. Step 2: Convert to fraction form
    56,920/124,208 = 124,208/x
  3. Step 3: Cross multiply
    56,920x = 124,208 × 124,208
  4. Step 4: Simplify right side
    56,920x = 15,427,627,264
  5. Step 5: Solve for x
    x = 15,427,627,264/56,920
  6. Step 6: Final answer
    x = 271,040.54

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Why These Related Problems?

These problems maintain the same ratio (2.18) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.