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Finding the Fourth Proportional to 365.84, 548.82 and 122.43

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Solution

The fourth proportional to 365.84, 548.82 and 122.43 is: 183.67

Step by Step Solution

  1. Step 1: Write the proportion equation
    365.84 : 548.82 = 122.43 : x
  2. Step 2: Convert to fraction form
    365.84/548.82 = 122.43/x
  3. Step 3: Cross multiply
    365.84x = 548.82 × 122.43
  4. Step 4: Simplify right side
    365.84x = 67,192.03
  5. Step 5: Solve for x
    x = 67,192.03/365.84
  6. Step 6: Final answer
    x = 183.67

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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.