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Finding the Fourth Proportional to 157.67, 236.50 and 49.44

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Solution

The fourth proportional to 157.67, 236.50 and 49.44 is: 74.16

Step by Step Solution

  1. Step 1: Write the proportion equation
    157.67 : 236.50 = 49.44 : x
  2. Step 2: Convert to fraction form
    157.67/236.50 = 49.44/x
  3. Step 3: Cross multiply
    157.67x = 236.50 × 49.44
  4. Step 4: Simplify right side
    157.67x = 11,692.56
  5. Step 5: Solve for x
    x = 11,692.56/157.67
  6. Step 6: Final answer
    x = 74.16

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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.