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Finding the Fourth Proportional to 166,998.91, 250,498.87 and 40,639.17

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Solution

The fourth proportional to 166,998.91, 250,498.87 and 40,639.17 is: 60,958.88

Step by Step Solution

  1. Step 1: Write the proportion equation
    166,998.91 : 250,498.87 = 40,639.17 : x
  2. Step 2: Convert to fraction form
    166,998.91/250,498.87 = 40,639.17/x
  3. Step 3: Cross multiply
    166,998.91x = 250,498.87 × 40,639.17
  4. Step 4: Simplify right side
    166,998.91x = 10,180,065,959.54
  5. Step 5: Solve for x
    x = 10,180,065,959.54/166,998.91
  6. Step 6: Final answer
    x = 60,958.88

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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.