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Finding the Fourth Proportional to 118.22, 174.89 and 118.22

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Solution

The fourth proportional to 118.22, 174.89 and 118.22 is: 174.89

Step by Step Solution

  1. Step 1: Write the proportion equation
    118.22 : 174.89 = 118.22 : x
  2. Step 2: Convert to fraction form
    118.22/174.89 = 118.22/x
  3. Step 3: Cross multiply
    118.22x = 174.89 × 118.22
  4. Step 4: Simplify right side
    118.22x = 20,675.50
  5. Step 5: Solve for x
    x = 20,675.50/118.22
  6. Step 6: Final answer
    x = 174.89

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Why These Related Problems?

These problems maintain the same ratio (1.48) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.