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Finding the Fourth Proportional to 157.59, 236.41 and 49.39

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Solution

The fourth proportional to 157.59, 236.41 and 49.39 is: 74.09

Step by Step Solution

  1. Step 1: Write the proportion equation
    157.59 : 236.41 = 49.39 : x
  2. Step 2: Convert to fraction form
    157.59/236.41 = 49.39/x
  3. Step 3: Cross multiply
    157.59x = 236.41 × 49.39
  4. Step 4: Simplify right side
    157.59x = 11,676.29
  5. Step 5: Solve for x
    x = 11,676.29/157.59
  6. Step 6: Final answer
    x = 74.09

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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.