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Finding the Third Proportional to 63,128 and 136,048

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Solution

The third proportional to 63,128 and 136,048 is: 293,198.87

Step by Step Solution

  1. Step 1: Write the proportion equation
    63,128 : 136,048 = 136,048 : x
  2. Step 2: Convert to fraction form
    63,128/136,048 = 136,048/x
  3. Step 3: Cross multiply
    63,128x = 136,048 × 136,048
  4. Step 4: Simplify right side
    63,128x = 18,509,058,304
  5. Step 5: Solve for x
    x = 18,509,058,304/63,128
  6. Step 6: Final answer
    x = 293,198.87

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Why These Related Problems?

These problems maintain the same ratio (2.16) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.