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Finding the Fourth Proportional to 192.04, 265.06 and 118.40

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Solution

The fourth proportional to 192.04, 265.06 and 118.40 is: 163.42

Step by Step Solution

  1. Step 1: Write the proportion equation
    192.04 : 265.06 = 118.40 : x
  2. Step 2: Convert to fraction form
    192.04/265.06 = 118.40/x
  3. Step 3: Cross multiply
    192.04x = 265.06 × 118.40
  4. Step 4: Simplify right side
    192.04x = 31,383.10
  5. Step 5: Solve for x
    x = 31,383.10/192.04
  6. Step 6: Final answer
    x = 163.42

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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.