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Finding the Fourth Proportional to 116.29, 174.64 and 114.56

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Solution

The fourth proportional to 116.29, 174.64 and 114.56 is: 172.05

Step by Step Solution

  1. Step 1: Write the proportion equation
    116.29 : 174.64 = 114.56 : x
  2. Step 2: Convert to fraction form
    116.29/174.64 = 114.56/x
  3. Step 3: Cross multiply
    116.29x = 174.64 × 114.56
  4. Step 4: Simplify right side
    116.29x = 20,007.45
  5. Step 5: Solve for x
    x = 20,007.45/116.29
  6. Step 6: Final answer
    x = 172.05

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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.