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Finding the Fourth Proportional to 192,571.44, 288,746.19 and 74,227.20

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Solution

The fourth proportional to 192,571.44, 288,746.19 and 74,227.20 is: 111,298.03

Step by Step Solution

  1. Step 1: Write the proportion equation
    192,571.44 : 288,746.19 = 74,227.20 : x
  2. Step 2: Convert to fraction form
    192,571.44/288,746.19 = 74,227.20/x
  3. Step 3: Cross multiply
    192,571.44x = 288,746.19 × 74,227.20
  4. Step 4: Simplify right side
    192,571.44x = 21,432,821,194.37
  5. Step 5: Solve for x
    x = 21,432,821,194.37/192,571.44
  6. Step 6: Final answer
    x = 111,298.03

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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.