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Finding the Fourth Proportional to 231,993.81, 347,916.60 and 74,184.75

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Solution

The fourth proportional to 231,993.81, 347,916.60 and 74,184.75 is: 111,253.43

Step by Step Solution

  1. Step 1: Write the proportion equation
    231,993.81 : 347,916.60 = 74,184.75 : x
  2. Step 2: Convert to fraction form
    231,993.81/347,916.60 = 74,184.75/x
  3. Step 3: Cross multiply
    231,993.81x = 347,916.60 × 74,184.75
  4. Step 4: Simplify right side
    231,993.81x = 25,810,105,991.85
  5. Step 5: Solve for x
    x = 25,810,105,991.85/231,993.81
  6. Step 6: Final answer
    x = 111,253.43

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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.