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Finding the Fourth Proportional to 111,324.81, 166,593 and 69,224.70

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Solution

The fourth proportional to 111,324.81, 166,593 and 69,224.70 is: 103,591.92

Step by Step Solution

  1. Step 1: Write the proportion equation
    111,324.81 : 166,593 = 69,224.70 : x
  2. Step 2: Convert to fraction form
    111,324.81/166,593 = 69,224.70/x
  3. Step 3: Cross multiply
    111,324.81x = 166,593 × 69,224.70
  4. Step 4: Simplify right side
    111,324.81x = 11,532,350,447.10
  5. Step 5: Solve for x
    x = 11,532,350,447.10/111,324.81
  6. Step 6: Final answer
    x = 103,591.92

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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.