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Finding the Fourth Proportional to 235.95, 353.68 and 106.02

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Solution

The fourth proportional to 235.95, 353.68 and 106.02 is: 158.92

Step by Step Solution

  1. Step 1: Write the proportion equation
    235.95 : 353.68 = 106.02 : x
  2. Step 2: Convert to fraction form
    235.95/353.68 = 106.02/x
  3. Step 3: Cross multiply
    235.95x = 353.68 × 106.02
  4. Step 4: Simplify right side
    235.95x = 37,497.15
  5. Step 5: Solve for x
    x = 37,497.15/235.95
  6. Step 6: Final answer
    x = 158.92

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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.