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Finding the Fourth Proportional to 351.34, 484.83 and 193.97

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Solution

The fourth proportional to 351.34, 484.83 and 193.97 is: 267.67

Step by Step Solution

  1. Step 1: Write the proportion equation
    351.34 : 484.83 = 193.97 : x
  2. Step 2: Convert to fraction form
    351.34/484.83 = 193.97/x
  3. Step 3: Cross multiply
    351.34x = 484.83 × 193.97
  4. Step 4: Simplify right side
    351.34x = 94,041.41
  5. Step 5: Solve for x
    x = 94,041.41/351.34
  6. Step 6: Final answer
    x = 267.67

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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.