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Finding the Third Proportional to 53,138 and 112,756

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Solution

The third proportional to 53,138 and 112,756 is: 239,262.21

Step by Step Solution

  1. Step 1: Write the proportion equation
    53,138 : 112,756 = 112,756 : x
  2. Step 2: Convert to fraction form
    53,138/112,756 = 112,756/x
  3. Step 3: Cross multiply
    53,138x = 112,756 × 112,756
  4. Step 4: Simplify right side
    53,138x = 12,713,915,536
  5. Step 5: Solve for x
    x = 12,713,915,536/53,138
  6. Step 6: Final answer
    x = 239,262.21

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Why These Related Problems?

These problems maintain the same ratio (2.12) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.