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Finding the Fourth Proportional to 235.36, 352.92 and 98.36

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Solution

The fourth proportional to 235.36, 352.92 and 98.36 is: 147.49

Step by Step Solution

  1. Step 1: Write the proportion equation
    235.36 : 352.92 = 98.36 : x
  2. Step 2: Convert to fraction form
    235.36/352.92 = 98.36/x
  3. Step 3: Cross multiply
    235.36x = 352.92 × 98.36
  4. Step 4: Simplify right side
    235.36x = 34,713.21
  5. Step 5: Solve for x
    x = 34,713.21/235.36
  6. Step 6: Final answer
    x = 147.49

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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.