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Finding the Fourth Proportional to 214.87, 296.57 and 126.36

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Solution

The fourth proportional to 214.87, 296.57 and 126.36 is: 174.41

Step by Step Solution

  1. Step 1: Write the proportion equation
    214.87 : 296.57 = 126.36 : x
  2. Step 2: Convert to fraction form
    214.87/296.57 = 126.36/x
  3. Step 3: Cross multiply
    214.87x = 296.57 × 126.36
  4. Step 4: Simplify right side
    214.87x = 37,474.90
  5. Step 5: Solve for x
    x = 37,474.90/214.87
  6. Step 6: Final answer
    x = 174.41

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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.