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Finding the Fourth Proportional to 193,910.60, 290,865.36 and 60,791.42

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Solution

The fourth proportional to 193,910.60, 290,865.36 and 60,791.42 is: 91,186.96

Step by Step Solution

  1. Step 1: Write the proportion equation
    193,910.60 : 290,865.36 = 60,791.42 : x
  2. Step 2: Convert to fraction form
    193,910.60/290,865.36 = 60,791.42/x
  3. Step 3: Cross multiply
    193,910.60x = 290,865.36 × 60,791.42
  4. Step 4: Simplify right side
    193,910.60x = 17,682,118,263.21
  5. Step 5: Solve for x
    x = 17,682,118,263.21/193,910.60
  6. Step 6: Final answer
    x = 91,186.96

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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.