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Finding the Fourth Proportional to 192.35, 265.44 and 105.02

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Solution

The fourth proportional to 192.35, 265.44 and 105.02 is: 144.92

Step by Step Solution

  1. Step 1: Write the proportion equation
    192.35 : 265.44 = 105.02 : x
  2. Step 2: Convert to fraction form
    192.35/265.44 = 105.02/x
  3. Step 3: Cross multiply
    192.35x = 265.44 × 105.02
  4. Step 4: Simplify right side
    192.35x = 27,874.66
  5. Step 5: Solve for x
    x = 27,874.66/192.35
  6. Step 6: Final answer
    x = 144.92

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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.