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Finding the Fourth Proportional to 174.69, 262.05 and 52.98

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Solution

The fourth proportional to 174.69, 262.05 and 52.98 is: 79.47

Step by Step Solution

  1. Step 1: Write the proportion equation
    174.69 : 262.05 = 52.98 : x
  2. Step 2: Convert to fraction form
    174.69/262.05 = 52.98/x
  3. Step 3: Cross multiply
    174.69x = 262.05 × 52.98
  4. Step 4: Simplify right side
    174.69x = 13,883.41
  5. Step 5: Solve for x
    x = 13,883.41/174.69
  6. Step 6: Final answer
    x = 79.47

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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.