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Finding the Fourth Proportional to 168.66, 252.90 and 58.94

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Solution

The fourth proportional to 168.66, 252.90 and 58.94 is: 88.38

Step by Step Solution

  1. Step 1: Write the proportion equation
    168.66 : 252.90 = 58.94 : x
  2. Step 2: Convert to fraction form
    168.66/252.90 = 58.94/x
  3. Step 3: Cross multiply
    168.66x = 252.90 × 58.94
  4. Step 4: Simplify right side
    168.66x = 14,905.93
  5. Step 5: Solve for x
    x = 14,905.93/168.66
  6. Step 6: Final answer
    x = 88.38

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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.