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Finding the Fourth Proportional to 218,791.89, 327,969.81 and 92,463.93

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Solution

The fourth proportional to 218,791.89, 327,969.81 and 92,463.93 is: 138,603.76

Step by Step Solution

  1. Step 1: Write the proportion equation
    218,791.89 : 327,969.81 = 92,463.93 : x
  2. Step 2: Convert to fraction form
    218,791.89/327,969.81 = 92,463.93/x
  3. Step 3: Cross multiply
    218,791.89x = 327,969.81 × 92,463.93
  4. Step 4: Simplify right side
    218,791.89x = 30,325,377,553.95
  5. Step 5: Solve for x
    x = 30,325,377,553.95/218,791.89
  6. Step 6: Final answer
    x = 138,603.76

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Why These Related Problems?

These problems maintain the same ratio (1.50) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.