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Finding the Fourth Proportional to 193,911.10, 290,866.11 and 60,791.92

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Solution

The fourth proportional to 193,911.10, 290,866.11 and 60,791.92 is: 91,187.71

Step by Step Solution

  1. Step 1: Write the proportion equation
    193,911.10 : 290,866.11 = 60,791.92 : x
  2. Step 2: Convert to fraction form
    193,911.10/290,866.11 = 60,791.92/x
  3. Step 3: Cross multiply
    193,911.10x = 290,866.11 × 60,791.92
  4. Step 4: Simplify right side
    193,911.10x = 17,682,309,289.83
  5. Step 5: Solve for x
    x = 17,682,309,289.83/193,911.10
  6. Step 6: Final answer
    x = 91,187.71

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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.