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Finding the Fourth Proportional to 174.84, 262.29 and 53.09

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Solution

The fourth proportional to 174.84, 262.29 and 53.09 is: 79.64

Step by Step Solution

  1. Step 1: Write the proportion equation
    174.84 : 262.29 = 53.09 : x
  2. Step 2: Convert to fraction form
    174.84/262.29 = 53.09/x
  3. Step 3: Cross multiply
    174.84x = 262.29 × 53.09
  4. Step 4: Simplify right side
    174.84x = 13,924.98
  5. Step 5: Solve for x
    x = 13,924.98/174.84
  6. Step 6: Final answer
    x = 79.64

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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.