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Finding the Fourth Proportional to 116.36, 174.14 and 75.24

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Solution

The fourth proportional to 116.36, 174.14 and 75.24 is: 112.60

Step by Step Solution

  1. Step 1: Write the proportion equation
    116.36 : 174.14 = 75.24 : x
  2. Step 2: Convert to fraction form
    116.36/174.14 = 75.24/x
  3. Step 3: Cross multiply
    116.36x = 174.14 × 75.24
  4. Step 4: Simplify right side
    116.36x = 13,102.29
  5. Step 5: Solve for x
    x = 13,102.29/116.36
  6. Step 6: Final answer
    x = 112.60

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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.