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Finding the Fourth Proportional to 192.54, 265.68 and 118.89

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Solution

The fourth proportional to 192.54, 265.68 and 118.89 is: 164.05

Step by Step Solution

  1. Step 1: Write the proportion equation
    192.54 : 265.68 = 118.89 : x
  2. Step 2: Convert to fraction form
    192.54/265.68 = 118.89/x
  3. Step 3: Cross multiply
    192.54x = 265.68 × 118.89
  4. Step 4: Simplify right side
    192.54x = 31,586.70
  5. Step 5: Solve for x
    x = 31,586.70/192.54
  6. Step 6: Final answer
    x = 164.05

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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.