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Finding the Fourth Proportional to 94.46, 141 and 91.04

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Solution

The fourth proportional to 94.46, 141 and 91.04 is: 135.89

Step by Step Solution

  1. Step 1: Write the proportion equation
    94.46 : 141 = 91.04 : x
  2. Step 2: Convert to fraction form
    94.46/141 = 91.04/x
  3. Step 3: Cross multiply
    94.46x = 141 × 91.04
  4. Step 4: Simplify right side
    94.46x = 12,836.64
  5. Step 5: Solve for x
    x = 12,836.64/94.46
  6. Step 6: Final answer
    x = 135.89

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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.