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Finding the Fourth Proportional to 94.15, 141.18 and 46

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Solution

The fourth proportional to 94.15, 141.18 and 46 is: 68.98

Step by Step Solution

  1. Step 1: Write the proportion equation
    94.15 : 141.18 = 46 : x
  2. Step 2: Convert to fraction form
    94.15/141.18 = 46/x
  3. Step 3: Cross multiply
    94.15x = 141.18 × 46
  4. Step 4: Simplify right side
    94.15x = 6,494.28
  5. Step 5: Solve for x
    x = 6,494.28/94.15
  6. Step 6: Final answer
    x = 68.98

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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.