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Finding the Fourth Proportional to 188,016.99, 281,995.20 and 54,866.04

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Solution

The fourth proportional to 188,016.99, 281,995.20 and 54,866.04 is: 82,290.22

Step by Step Solution

  1. Step 1: Write the proportion equation
    188,016.99 : 281,995.20 = 54,866.04 : x
  2. Step 2: Convert to fraction form
    188,016.99/281,995.20 = 54,866.04/x
  3. Step 3: Cross multiply
    188,016.99x = 281,995.20 × 54,866.04
  4. Step 4: Simplify right side
    188,016.99x = 15,471,959,923.01
  5. Step 5: Solve for x
    x = 15,471,959,923.01/188,016.99
  6. Step 6: Final answer
    x = 82,290.22

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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.