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Finding the Fourth Proportional to 193.86, 267.33 and 147.23

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Solution

The fourth proportional to 193.86, 267.33 and 147.23 is: 203.03

Step by Step Solution

  1. Step 1: Write the proportion equation
    193.86 : 267.33 = 147.23 : x
  2. Step 2: Convert to fraction form
    193.86/267.33 = 147.23/x
  3. Step 3: Cross multiply
    193.86x = 267.33 × 147.23
  4. Step 4: Simplify right side
    193.86x = 39,359.21
  5. Step 5: Solve for x
    x = 39,359.21/193.86
  6. Step 6: Final answer
    x = 203.03

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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.