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Finding the Fourth Proportional to 167.83, 251.43 and 99.37

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Solution

The fourth proportional to 167.83, 251.43 and 99.37 is: 148.87

Step by Step Solution

  1. Step 1: Write the proportion equation
    167.83 : 251.43 = 99.37 : x
  2. Step 2: Convert to fraction form
    167.83/251.43 = 99.37/x
  3. Step 3: Cross multiply
    167.83x = 251.43 × 99.37
  4. Step 4: Simplify right side
    167.83x = 24,984.60
  5. Step 5: Solve for x
    x = 24,984.60/167.83
  6. Step 6: Final answer
    x = 148.87

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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.