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Finding the Fourth Proportional to 141, 194.52 and 94.36

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Solution

The fourth proportional to 141, 194.52 and 94.36 is: 130.18

Step by Step Solution

  1. Step 1: Write the proportion equation
    141 : 194.52 = 94.36 : x
  2. Step 2: Convert to fraction form
    141/194.52 = 94.36/x
  3. Step 3: Cross multiply
    141x = 194.52 × 94.36
  4. Step 4: Simplify right side
    141x = 18,354.91
  5. Step 5: Solve for x
    x = 18,354.91/141
  6. Step 6: Final answer
    x = 130.18

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Why These Related Problems?

These problems maintain the same ratio (1.38) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.