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Finding the Fourth Proportional to 192.07, 264.95 and 122.00

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Solution

The fourth proportional to 192.07, 264.95 and 122.00 is: 168.29

Step by Step Solution

  1. Step 1: Write the proportion equation
    192.07 : 264.95 = 122.00 : x
  2. Step 2: Convert to fraction form
    192.07/264.95 = 122.00/x
  3. Step 3: Cross multiply
    192.07x = 264.95 × 122.00
  4. Step 4: Simplify right side
    192.07x = 32,323.95
  5. Step 5: Solve for x
    x = 32,323.95/192.07
  6. Step 6: Final answer
    x = 168.29

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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.