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Finding the Fourth Proportional to 191.60, 264.46 and 126.14

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Solution

The fourth proportional to 191.60, 264.46 and 126.14 is: 174.11

Step by Step Solution

  1. Step 1: Write the proportion equation
    191.60 : 264.46 = 126.14 : x
  2. Step 2: Convert to fraction form
    191.60/264.46 = 126.14/x
  3. Step 3: Cross multiply
    191.60x = 264.46 × 126.14
  4. Step 4: Simplify right side
    191.60x = 33,358.98
  5. Step 5: Solve for x
    x = 33,358.98/191.60
  6. Step 6: Final answer
    x = 174.11

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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.