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Finding the Fourth Proportional to 192,090.80, 288,049.80 and 73,722.80

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Solution

The fourth proportional to 192,090.80, 288,049.80 and 73,722.80 is: 110,551.04

Step by Step Solution

  1. Step 1: Write the proportion equation
    192,090.80 : 288,049.80 = 73,722.80 : x
  2. Step 2: Convert to fraction form
    192,090.80/288,049.80 = 73,722.80/x
  3. Step 3: Cross multiply
    192,090.80x = 288,049.80 × 73,722.80
  4. Step 4: Simplify right side
    192,090.80x = 21,235,837,795.44
  5. Step 5: Solve for x
    x = 21,235,837,795.44/192,090.80
  6. Step 6: Final answer
    x = 110,551.04

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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.