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Finding the Fourth Proportional to 293,190.94, 439,793.97 and 79,960.60

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Solution

The fourth proportional to 293,190.94, 439,793.97 and 79,960.60 is: 119,942.96

Step by Step Solution

  1. Step 1: Write the proportion equation
    293,190.94 : 439,793.97 = 79,960.60 : x
  2. Step 2: Convert to fraction form
    293,190.94/439,793.97 = 79,960.60/x
  3. Step 3: Cross multiply
    293,190.94x = 439,793.97 × 79,960.60
  4. Step 4: Simplify right side
    293,190.94x = 35,166,189,717.58
  5. Step 5: Solve for x
    x = 35,166,189,717.58/293,190.94
  6. Step 6: Final answer
    x = 119,942.96

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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.