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Finding the Fourth Proportional to 141.26, 211.60 and 107.06

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Solution

The fourth proportional to 141.26, 211.60 and 107.06 is: 160.37

Step by Step Solution

  1. Step 1: Write the proportion equation
    141.26 : 211.60 = 107.06 : x
  2. Step 2: Convert to fraction form
    141.26/211.60 = 107.06/x
  3. Step 3: Cross multiply
    141.26x = 211.60 × 107.06
  4. Step 4: Simplify right side
    141.26x = 22,653.90
  5. Step 5: Solve for x
    x = 22,653.90/141.26
  6. Step 6: Final answer
    x = 160.37

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Why These Related Problems?

These problems maintain the same ratio (1.50) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.