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Finding the Fourth Proportional to 270.12, 404.73 and 235.50

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Solution

The fourth proportional to 270.12, 404.73 and 235.50 is: 352.86

Step by Step Solution

  1. Step 1: Write the proportion equation
    270.12 : 404.73 = 235.50 : x
  2. Step 2: Convert to fraction form
    270.12/404.73 = 235.50/x
  3. Step 3: Cross multiply
    270.12x = 404.73 × 235.50
  4. Step 4: Simplify right side
    270.12x = 95,313.92
  5. Step 5: Solve for x
    x = 95,313.92/270.12
  6. Step 6: Final answer
    x = 352.86

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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.