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Finding the Fourth Proportional to 92,616.78, 127,811.13 and 50,175.30

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Solution

The fourth proportional to 92,616.78, 127,811.13 and 50,175.30 is: 69,241.90

Step by Step Solution

  1. Step 1: Write the proportion equation
    92,616.78 : 127,811.13 = 50,175.30 : x
  2. Step 2: Convert to fraction form
    92,616.78/127,811.13 = 50,175.30/x
  3. Step 3: Cross multiply
    92,616.78x = 127,811.13 × 50,175.30
  4. Step 4: Simplify right side
    92,616.78x = 6,412,961,791.09
  5. Step 5: Solve for x
    x = 6,412,961,791.09/92,616.78
  6. Step 6: Final answer
    x = 69,241.90

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Why These Related Problems?

These problems maintain the same ratio (1.38) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.