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Finding the Fourth Proportional to 336,990.38, 464,993.87 and 193,723.65

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Solution

The fourth proportional to 336,990.38, 464,993.87 and 193,723.65 is: 267,308.25

Step by Step Solution

  1. Step 1: Write the proportion equation
    336,990.38 : 464,993.87 = 193,723.65 : x
  2. Step 2: Convert to fraction form
    336,990.38/464,993.87 = 193,723.65/x
  3. Step 3: Cross multiply
    336,990.38x = 464,993.87 × 193,723.65
  4. Step 4: Simplify right side
    336,990.38x = 90,080,308,755.41
  5. Step 5: Solve for x
    x = 90,080,308,755.41/336,990.38
  6. Step 6: Final answer
    x = 267,308.25

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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.