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Finding the Fourth Proportional to 192,091.37, 288,170.87 and 65,701.94

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Solution

The fourth proportional to 192,091.37, 288,170.87 and 65,701.94 is: 98,564.47

Step by Step Solution

  1. Step 1: Write the proportion equation
    192,091.37 : 288,170.87 = 65,701.94 : x
  2. Step 2: Convert to fraction form
    192,091.37/288,170.87 = 65,701.94/x
  3. Step 3: Cross multiply
    192,091.37x = 288,170.87 × 65,701.94
  4. Step 4: Simplify right side
    192,091.37x = 18,933,383,441.12
  5. Step 5: Solve for x
    x = 18,933,383,441.12/192,091.37
  6. Step 6: Final answer
    x = 98,564.47

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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.