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Finding the Fourth Proportional to 168,399.37, 232,387.62 and 91,919.98

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Solution

The fourth proportional to 168,399.37, 232,387.62 and 91,919.98 is: 126,847.66

Step by Step Solution

  1. Step 1: Write the proportion equation
    168,399.37 : 232,387.62 = 91,919.98 : x
  2. Step 2: Convert to fraction form
    168,399.37/232,387.62 = 91,919.98/x
  3. Step 3: Cross multiply
    168,399.37x = 232,387.62 × 91,919.98
  4. Step 4: Simplify right side
    168,399.37x = 21,361,065,382.65
  5. Step 5: Solve for x
    x = 21,361,065,382.65/168,399.37
  6. Step 6: Final answer
    x = 126,847.66

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Why These Related Problems?

These problems maintain the same ratio (1.38) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.