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Finding the Fourth Proportional to 294.24, 441.14 and 172.74

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Solution

The fourth proportional to 294.24, 441.14 and 172.74 is: 258.98

Step by Step Solution

  1. Step 1: Write the proportion equation
    294.24 : 441.14 = 172.74 : x
  2. Step 2: Convert to fraction form
    294.24/441.14 = 172.74/x
  3. Step 3: Cross multiply
    294.24x = 441.14 × 172.74
  4. Step 4: Simplify right side
    294.24x = 76,201.66
  5. Step 5: Solve for x
    x = 76,201.66/294.24
  6. Step 6: Final answer
    x = 258.98

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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.