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Finding the Fourth Proportional to 117.24, 175.98 and 63.12

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Solution

The fourth proportional to 117.24, 175.98 and 63.12 is: 94.74

Step by Step Solution

  1. Step 1: Write the proportion equation
    117.24 : 175.98 = 63.12 : x
  2. Step 2: Convert to fraction form
    117.24/175.98 = 63.12/x
  3. Step 3: Cross multiply
    117.24x = 175.98 × 63.12
  4. Step 4: Simplify right side
    117.24x = 11,107.86
  5. Step 5: Solve for x
    x = 11,107.86/117.24
  6. Step 6: Final answer
    x = 94.74

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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.