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Finding the Fourth Proportional to 192.26, 288.42 and 64

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Solution

The fourth proportional to 192.26, 288.42 and 64 is: 96.01

Step by Step Solution

  1. Step 1: Write the proportion equation
    192.26 : 288.42 = 64 : x
  2. Step 2: Convert to fraction form
    192.26/288.42 = 64/x
  3. Step 3: Cross multiply
    192.26x = 288.42 × 64
  4. Step 4: Simplify right side
    192.26x = 18,458.88
  5. Step 5: Solve for x
    x = 18,458.88/192.26
  6. Step 6: Final answer
    x = 96.01

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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.