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Finding the Fourth Proportional to 192, 288.48 and 151.68

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Solution

The fourth proportional to 192, 288.48 and 151.68 is: 227.90

Step by Step Solution

  1. Step 1: Write the proportion equation
    192 : 288.48 = 151.68 : x
  2. Step 2: Convert to fraction form
    192/288.48 = 151.68/x
  3. Step 3: Cross multiply
    192x = 288.48 × 151.68
  4. Step 4: Simplify right side
    192x = 43,756.65
  5. Step 5: Solve for x
    x = 43,756.65/192
  6. Step 6: Final answer
    x = 227.90

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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.