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Finding the Fourth Proportional to 163.99, 246 and 100.27

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Solution

The fourth proportional to 163.99, 246 and 100.27 is: 150.41

Step by Step Solution

  1. Step 1: Write the proportion equation
    163.99 : 246 = 100.27 : x
  2. Step 2: Convert to fraction form
    163.99/246 = 100.27/x
  3. Step 3: Cross multiply
    163.99x = 246 × 100.27
  4. Step 4: Simplify right side
    163.99x = 24,666.42
  5. Step 5: Solve for x
    x = 24,666.42/163.99
  6. Step 6: Final answer
    x = 150.41

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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.