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Finding the Fourth Proportional to 294.60, 441.88 and 121.22

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Solution

The fourth proportional to 294.60, 441.88 and 121.22 is: 181.82

Step by Step Solution

  1. Step 1: Write the proportion equation
    294.60 : 441.88 = 121.22 : x
  2. Step 2: Convert to fraction form
    294.60/441.88 = 121.22/x
  3. Step 3: Cross multiply
    294.60x = 441.88 × 121.22
  4. Step 4: Simplify right side
    294.60x = 53,564.29
  5. Step 5: Solve for x
    x = 53,564.29/294.60
  6. Step 6: Final answer
    x = 181.82

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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.