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Finding the Fourth Proportional to 288,406.28, 397,998.38 and 167,618.26

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Solution

The fourth proportional to 288,406.28, 397,998.38 and 167,618.26 is: 231,311.87

Step by Step Solution

  1. Step 1: Write the proportion equation
    288,406.28 : 397,998.38 = 167,618.26 : x
  2. Step 2: Convert to fraction form
    288,406.28/397,998.38 = 167,618.26/x
  3. Step 3: Cross multiply
    288,406.28x = 397,998.38 × 167,618.26
  4. Step 4: Simplify right side
    288,406.28x = 66,711,795,938.42
  5. Step 5: Solve for x
    x = 66,711,795,938.42/288,406.28
  6. Step 6: Final answer
    x = 231,311.87

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