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Finding the Fourth Proportional to 235.10, 352.44 and 104.92

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Solution

The fourth proportional to 235.10, 352.44 and 104.92 is: 157.29

Step by Step Solution

  1. Step 1: Write the proportion equation
    235.10 : 352.44 = 104.92 : x
  2. Step 2: Convert to fraction form
    235.10/352.44 = 104.92/x
  3. Step 3: Cross multiply
    235.10x = 352.44 × 104.92
  4. Step 4: Simplify right side
    235.10x = 36,978.00
  5. Step 5: Solve for x
    x = 36,978.00/235.10
  6. Step 6: Final answer
    x = 157.29

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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.