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Finding the Fourth Proportional to 354.93, 532.14 and 111.33

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Solution

The fourth proportional to 354.93, 532.14 and 111.33 is: 166.92

Step by Step Solution

  1. Step 1: Write the proportion equation
    354.93 : 532.14 = 111.33 : x
  2. Step 2: Convert to fraction form
    354.93/532.14 = 111.33/x
  3. Step 3: Cross multiply
    354.93x = 532.14 × 111.33
  4. Step 4: Simplify right side
    354.93x = 59,243.15
  5. Step 5: Solve for x
    x = 59,243.15/354.93
  6. Step 6: Final answer
    x = 166.92

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Why These Related Problems?

These problems maintain the same ratio (1.50) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.