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Finding the Fourth Proportional to 192,401.20, 288,990.60 and 185,791.60

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Solution

The fourth proportional to 192,401.20, 288,990.60 and 185,791.60 is: 279,062.84

Step by Step Solution

  1. Step 1: Write the proportion equation
    192,401.20 : 288,990.60 = 185,791.60 : x
  2. Step 2: Convert to fraction form
    192,401.20/288,990.60 = 185,791.60/x
  3. Step 3: Cross multiply
    192,401.20x = 288,990.60 × 185,791.60
  4. Step 4: Simplify right side
    192,401.20x = 53,692,025,958.96
  5. Step 5: Solve for x
    x = 53,692,025,958.96/192,401.20
  6. Step 6: Final answer
    x = 279,062.84

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1.5x scale

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.