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Finding the Fourth Proportional to 263,382.55, 395,057.60 and 162,199.88

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Solution

The fourth proportional to 263,382.55, 395,057.60 and 162,199.88 is: 243,289.83

Step by Step Solution

  1. Step 1: Write the proportion equation
    263,382.55 : 395,057.60 = 162,199.88 : x
  2. Step 2: Convert to fraction form
    263,382.55/395,057.60 = 162,199.88/x
  3. Step 3: Cross multiply
    263,382.55x = 395,057.60 × 162,199.88
  4. Step 4: Simplify right side
    263,382.55x = 64,078,295,313.09
  5. Step 5: Solve for x
    x = 64,078,295,313.09/263,382.55
  6. Step 6: Final answer
    x = 243,289.83

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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.