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Finding the Third Proportional to 61,128 and 124,848

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Solution

The third proportional to 61,128 and 124,848 is: 254,989.91

Step by Step Solution

  1. Step 1: Write the proportion equation
    61,128 : 124,848 = 124,848 : x
  2. Step 2: Convert to fraction form
    61,128/124,848 = 124,848/x
  3. Step 3: Cross multiply
    61,128x = 124,848 × 124,848
  4. Step 4: Simplify right side
    61,128x = 15,587,023,104
  5. Step 5: Solve for x
    x = 15,587,023,104/61,128
  6. Step 6: Final answer
    x = 254,989.91

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Why These Related Problems?

These problems maintain the same ratio (2.04) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.