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Finding the Fourth Proportional to 174.76, 262 and 92.40

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Solution

The fourth proportional to 174.76, 262 and 92.40 is: 138.53

Step by Step Solution

  1. Step 1: Write the proportion equation
    174.76 : 262 = 92.40 : x
  2. Step 2: Convert to fraction form
    174.76/262 = 92.40/x
  3. Step 3: Cross multiply
    174.76x = 262 × 92.40
  4. Step 4: Simplify right side
    174.76x = 24,208.80
  5. Step 5: Solve for x
    x = 24,208.80/174.76
  6. Step 6: Final answer
    x = 138.53

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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.