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Finding the Third Proportional to 56,644 and 124,520

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Solution

The third proportional to 56,644 and 124,520 is: 273,731.21

Step by Step Solution

  1. Step 1: Write the proportion equation
    56,644 : 124,520 = 124,520 : x
  2. Step 2: Convert to fraction form
    56,644/124,520 = 124,520/x
  3. Step 3: Cross multiply
    56,644x = 124,520 × 124,520
  4. Step 4: Simplify right side
    56,644x = 15,505,230,400
  5. Step 5: Solve for x
    x = 15,505,230,400/56,644
  6. Step 6: Final answer
    x = 273,731.21

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Why These Related Problems?

These problems maintain the same ratio (2.20) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.