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Finding the Fourth Proportional to 193.60, 267.28 and 116

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Solution

The fourth proportional to 193.60, 267.28 and 116 is: 160.15

Step by Step Solution

  1. Step 1: Write the proportion equation
    193.60 : 267.28 = 116 : x
  2. Step 2: Convert to fraction form
    193.60/267.28 = 116/x
  3. Step 3: Cross multiply
    193.60x = 267.28 × 116
  4. Step 4: Simplify right side
    193.60x = 31,004.48
  5. Step 5: Solve for x
    x = 31,004.48/193.60
  6. Step 6: Final answer
    x = 160.15

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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.