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Finding the Fourth Proportional to 192,546.60, 288,776.70 and 126,450.60

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Solution

The fourth proportional to 192,546.60, 288,776.70 and 126,450.60 is: 189,647.53

Step by Step Solution

  1. Step 1: Write the proportion equation
    192,546.60 : 288,776.70 = 126,450.60 : x
  2. Step 2: Convert to fraction form
    192,546.60/288,776.70 = 126,450.60/x
  3. Step 3: Cross multiply
    192,546.60x = 288,776.70 × 126,450.60
  4. Step 4: Simplify right side
    192,546.60x = 36,515,986,981.02
  5. Step 5: Solve for x
    x = 36,515,986,981.02/192,546.60
  6. Step 6: Final answer
    x = 189,647.53

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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.