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Finding the Fourth Proportional to 116.66, 175.26 and 112.06

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Solution

The fourth proportional to 116.66, 175.26 and 112.06 is: 168.35

Step by Step Solution

  1. Step 1: Write the proportion equation
    116.66 : 175.26 = 112.06 : x
  2. Step 2: Convert to fraction form
    116.66/175.26 = 112.06/x
  3. Step 3: Cross multiply
    116.66x = 175.26 × 112.06
  4. Step 4: Simplify right side
    116.66x = 19,639.64
  5. Step 5: Solve for x
    x = 19,639.64/116.66
  6. Step 6: Final answer
    x = 168.35

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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.