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Finding the Fourth Proportional to 94.53, 141.76 and 73

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Solution

The fourth proportional to 94.53, 141.76 and 73 is: 109.47

Step by Step Solution

  1. Step 1: Write the proportion equation
    94.53 : 141.76 = 73 : x
  2. Step 2: Convert to fraction form
    94.53/141.76 = 73/x
  3. Step 3: Cross multiply
    94.53x = 141.76 × 73
  4. Step 4: Simplify right side
    94.53x = 10,348.48
  5. Step 5: Solve for x
    x = 10,348.48/94.53
  6. Step 6: Final answer
    x = 109.47

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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.