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Finding the Fourth Proportional to 281,889.53, 422,769.59 and 168,069.54

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Solution

The fourth proportional to 281,889.53, 422,769.59 and 168,069.54 is: 252,065.73

Step by Step Solution

  1. Step 1: Write the proportion equation
    281,889.53 : 422,769.59 = 168,069.54 : x
  2. Step 2: Convert to fraction form
    281,889.53/422,769.59 = 168,069.54/x
  3. Step 3: Cross multiply
    281,889.53x = 422,769.59 × 168,069.54
  4. Step 4: Simplify right side
    281,889.53x = 71,054,690,517.29
  5. Step 5: Solve for x
    x = 71,054,690,517.29/281,889.53
  6. Step 6: Final answer
    x = 252,065.73

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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.