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Finding the Fourth Proportional to 192,216.60, 288,375.30 and 73,891.80

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Solution

The fourth proportional to 192,216.60, 288,375.30 and 73,891.80 is: 110,857.07

Step by Step Solution

  1. Step 1: Write the proportion equation
    192,216.60 : 288,375.30 = 73,891.80 : x
  2. Step 2: Convert to fraction form
    192,216.60/288,375.30 = 73,891.80/x
  3. Step 3: Cross multiply
    192,216.60x = 288,375.30 × 73,891.80
  4. Step 4: Simplify right side
    192,216.60x = 21,308,569,992.54
  5. Step 5: Solve for x
    x = 21,308,569,992.54/192,216.60
  6. Step 6: Final answer
    x = 110,857.07

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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.