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Finding the Third Proportional to 92,640 and 140,832

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Solution

The third proportional to 92,640 and 140,832 is: 214,093.83

Step by Step Solution

  1. Step 1: Write the proportion equation
    92,640 : 140,832 = 140,832 : x
  2. Step 2: Convert to fraction form
    92,640/140,832 = 140,832/x
  3. Step 3: Cross multiply
    92,640x = 140,832 × 140,832
  4. Step 4: Simplify right side
    92,640x = 19,833,652,224
  5. Step 5: Solve for x
    x = 19,833,652,224/92,640
  6. Step 6: Final answer
    x = 214,093.83

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Why These Related Problems?

These problems maintain the same ratio (1.52) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.