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Finding the Fourth Proportional to 193.75, 267.75 and 152.26

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Solution

The fourth proportional to 193.75, 267.75 and 152.26 is: 210.41

Step by Step Solution

  1. Step 1: Write the proportion equation
    193.75 : 267.75 = 152.26 : x
  2. Step 2: Convert to fraction form
    193.75/267.75 = 152.26/x
  3. Step 3: Cross multiply
    193.75x = 267.75 × 152.26
  4. Step 4: Simplify right side
    193.75x = 40,767.62
  5. Step 5: Solve for x
    x = 40,767.62/193.75
  6. Step 6: Final answer
    x = 210.41

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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.