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Finding the Fourth Proportional to 94.62, 141.99 and 56.07

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Solution

The fourth proportional to 94.62, 141.99 and 56.07 is: 84.14

Step by Step Solution

  1. Step 1: Write the proportion equation
    94.62 : 141.99 = 56.07 : x
  2. Step 2: Convert to fraction form
    94.62/141.99 = 56.07/x
  3. Step 3: Cross multiply
    94.62x = 141.99 × 56.07
  4. Step 4: Simplify right side
    94.62x = 7,961.38
  5. Step 5: Solve for x
    x = 7,961.38/94.62
  6. Step 6: Final answer
    x = 84.14

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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.