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Finding the Fourth Proportional to 157, 235.42 and 116.44

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Solution

The fourth proportional to 157, 235.42 and 116.44 is: 174.60

Step by Step Solution

  1. Step 1: Write the proportion equation
    157 : 235.42 = 116.44 : x
  2. Step 2: Convert to fraction form
    157/235.42 = 116.44/x
  3. Step 3: Cross multiply
    157x = 235.42 × 116.44
  4. Step 4: Simplify right side
    157x = 27,412.30
  5. Step 5: Solve for x
    x = 27,412.30/157
  6. Step 6: Final answer
    x = 174.60

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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.