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Finding the Fourth Proportional to 95.16, 142.67 and 46.38

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Solution

The fourth proportional to 95.16, 142.67 and 46.38 is: 69.53

Step by Step Solution

  1. Step 1: Write the proportion equation
    95.16 : 142.67 = 46.38 : x
  2. Step 2: Convert to fraction form
    95.16/142.67 = 46.38/x
  3. Step 3: Cross multiply
    95.16x = 142.67 × 46.38
  4. Step 4: Simplify right side
    95.16x = 6,616.32
  5. Step 5: Solve for x
    x = 6,616.32/95.16
  6. Step 6: Final answer
    x = 69.53

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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.