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Finding the Third Proportional to 109,772 and 163,936

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Solution

The third proportional to 109,772 and 163,936 is: 244,825.75

Step by Step Solution

  1. Step 1: Write the proportion equation
    109,772 : 163,936 = 163,936 : x
  2. Step 2: Convert to fraction form
    109,772/163,936 = 163,936/x
  3. Step 3: Cross multiply
    109,772x = 163,936 × 163,936
  4. Step 4: Simplify right side
    109,772x = 26,875,012,096
  5. Step 5: Solve for x
    x = 26,875,012,096/109,772
  6. Step 6: Final answer
    x = 244,825.75

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Why These Related Problems?

These problems maintain the same ratio (1.49) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.