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Finding the Fourth Proportional to 174.22, 261.33 and 65.95

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Solution

The fourth proportional to 174.22, 261.33 and 65.95 is: 98.93

Step by Step Solution

  1. Step 1: Write the proportion equation
    174.22 : 261.33 = 65.95 : x
  2. Step 2: Convert to fraction form
    174.22/261.33 = 65.95/x
  3. Step 3: Cross multiply
    174.22x = 261.33 × 65.95
  4. Step 4: Simplify right side
    174.22x = 17,234.71
  5. Step 5: Solve for x
    x = 17,234.71/174.22
  6. Step 6: Final answer
    x = 98.93

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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.