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Finding the Fourth Proportional to 123.52, 185.24 and 42.36

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Solution

The fourth proportional to 123.52, 185.24 and 42.36 is: 63.53

Step by Step Solution

  1. Step 1: Write the proportion equation
    123.52 : 185.24 = 42.36 : x
  2. Step 2: Convert to fraction form
    123.52/185.24 = 42.36/x
  3. Step 3: Cross multiply
    123.52x = 185.24 × 42.36
  4. Step 4: Simplify right side
    123.52x = 7,846.77
  5. Step 5: Solve for x
    x = 7,846.77/123.52
  6. Step 6: Final answer
    x = 63.53

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These problems maintain the same ratio (1.50) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.