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Finding the Fourth Proportional to 349.44, 524.24 and 157

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Solution

The fourth proportional to 349.44, 524.24 and 157 is: 235.54

Step by Step Solution

  1. Step 1: Write the proportion equation
    349.44 : 524.24 = 157 : x
  2. Step 2: Convert to fraction form
    349.44/524.24 = 157/x
  3. Step 3: Cross multiply
    349.44x = 524.24 × 157
  4. Step 4: Simplify right side
    349.44x = 82,305.68
  5. Step 5: Solve for x
    x = 82,305.68/349.44
  6. Step 6: Final answer
    x = 235.54

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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.