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Finding the Fourth Proportional to 114.96, 172.42 and 41.83

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Solution

The fourth proportional to 114.96, 172.42 and 41.83 is: 62.74

Step by Step Solution

  1. Step 1: Write the proportion equation
    114.96 : 172.42 = 41.83 : x
  2. Step 2: Convert to fraction form
    114.96/172.42 = 41.83/x
  3. Step 3: Cross multiply
    114.96x = 172.42 × 41.83
  4. Step 4: Simplify right side
    114.96x = 7,213.16
  5. Step 5: Solve for x
    x = 7,213.16/114.96
  6. Step 6: Final answer
    x = 62.74

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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.