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Finding the Fourth Proportional to 95.86, 142.85 and 95.32

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Solution

The fourth proportional to 95.86, 142.85 and 95.32 is: 142.05

Step by Step Solution

  1. Step 1: Write the proportion equation
    95.86 : 142.85 = 95.32 : x
  2. Step 2: Convert to fraction form
    95.86/142.85 = 95.32/x
  3. Step 3: Cross multiply
    95.86x = 142.85 × 95.32
  4. Step 4: Simplify right side
    95.86x = 13,616.46
  5. Step 5: Solve for x
    x = 13,616.46/95.86
  6. Step 6: Final answer
    x = 142.05

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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.