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Finding the Third Proportional to 57,042 and 120,996

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Solution

The third proportional to 57,042 and 120,996 is: 256,653.55

Step by Step Solution

  1. Step 1: Write the proportion equation
    57,042 : 120,996 = 120,996 : x
  2. Step 2: Convert to fraction form
    57,042/120,996 = 120,996/x
  3. Step 3: Cross multiply
    57,042x = 120,996 × 120,996
  4. Step 4: Simplify right side
    57,042x = 14,640,032,016
  5. Step 5: Solve for x
    x = 14,640,032,016/57,042
  6. Step 6: Final answer
    x = 256,653.55

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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.