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Finding the Fourth Proportional to 192.15, 265.04 and 114.54

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Solution

The fourth proportional to 192.15, 265.04 and 114.54 is: 157.99

Step by Step Solution

  1. Step 1: Write the proportion equation
    192.15 : 265.04 = 114.54 : x
  2. Step 2: Convert to fraction form
    192.15/265.04 = 114.54/x
  3. Step 3: Cross multiply
    192.15x = 265.04 × 114.54
  4. Step 4: Simplify right side
    192.15x = 30,357.11
  5. Step 5: Solve for x
    x = 30,357.11/192.15
  6. Step 6: Final answer
    x = 157.99

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Why These Related Problems?

These problems maintain the same ratio (1.38) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.