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Finding the Fourth Proportional to 192,771.67, 289,110.93 and 74,367.49

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Solution

The fourth proportional to 192,771.67, 289,110.93 and 74,367.49 is: 111,533.27

Step by Step Solution

  1. Step 1: Write the proportion equation
    192,771.67 : 289,110.93 = 74,367.49 : x
  2. Step 2: Convert to fraction form
    192,771.67/289,110.93 = 74,367.49/x
  3. Step 3: Cross multiply
    192,771.67x = 289,110.93 × 74,367.49
  4. Step 4: Simplify right side
    192,771.67x = 21,500,454,195.67
  5. Step 5: Solve for x
    x = 21,500,454,195.67/192,771.67
  6. Step 6: Final answer
    x = 111,533.27

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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.