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Finding the Fourth Proportional to 194.33, 268.17 and 107.00

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Solution

The fourth proportional to 194.33, 268.17 and 107.00 is: 147.66

Step by Step Solution

  1. Step 1: Write the proportion equation
    194.33 : 268.17 = 107.00 : x
  2. Step 2: Convert to fraction form
    194.33/268.17 = 107.00/x
  3. Step 3: Cross multiply
    194.33x = 268.17 × 107.00
  4. Step 4: Simplify right side
    194.33x = 28,695.26
  5. Step 5: Solve for x
    x = 28,695.26/194.33
  6. Step 6: Final answer
    x = 147.66

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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.