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Finding the Fourth Proportional to 294.55, 441.97 and 157.55

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Solution

The fourth proportional to 294.55, 441.97 and 157.55 is: 236.40

Step by Step Solution

  1. Step 1: Write the proportion equation
    294.55 : 441.97 = 157.55 : x
  2. Step 2: Convert to fraction form
    294.55/441.97 = 157.55/x
  3. Step 3: Cross multiply
    294.55x = 441.97 × 157.55
  4. Step 4: Simplify right side
    294.55x = 69,629.77
  5. Step 5: Solve for x
    x = 69,629.77/294.55
  6. Step 6: Final answer
    x = 236.40

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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.