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Finding the Fourth Proportional to 192.56, 288.88 and 107.04

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Solution

The fourth proportional to 192.56, 288.88 and 107.04 is: 160.58

Step by Step Solution

  1. Step 1: Write the proportion equation
    192.56 : 288.88 = 107.04 : x
  2. Step 2: Convert to fraction form
    192.56/288.88 = 107.04/x
  3. Step 3: Cross multiply
    192.56x = 288.88 × 107.04
  4. Step 4: Simplify right side
    192.56x = 30,921.72
  5. Step 5: Solve for x
    x = 30,921.72/192.56
  6. Step 6: Final answer
    x = 160.58

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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.