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Finding the Fourth Proportional to 167.99, 252.06 and 122.58

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Solution

The fourth proportional to 167.99, 252.06 and 122.58 is: 183.93

Step by Step Solution

  1. Step 1: Write the proportion equation
    167.99 : 252.06 = 122.58 : x
  2. Step 2: Convert to fraction form
    167.99/252.06 = 122.58/x
  3. Step 3: Cross multiply
    167.99x = 252.06 × 122.58
  4. Step 4: Simplify right side
    167.99x = 30,897.74
  5. Step 5: Solve for x
    x = 30,897.74/167.99
  6. Step 6: Final answer
    x = 183.93

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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.