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Finding the Fourth Proportional to 117.94, 175.88 and 104.83

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Solution

The fourth proportional to 117.94, 175.88 and 104.83 is: 156.33

Step by Step Solution

  1. Step 1: Write the proportion equation
    117.94 : 175.88 = 104.83 : x
  2. Step 2: Convert to fraction form
    117.94/175.88 = 104.83/x
  3. Step 3: Cross multiply
    117.94x = 175.88 × 104.83
  4. Step 4: Simplify right side
    117.94x = 18,436.96
  5. Step 5: Solve for x
    x = 18,436.96/117.94
  6. Step 6: Final answer
    x = 156.33

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Why These Related Problems?

These problems maintain the same ratio (1.49) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.