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Finding the Fourth Proportional to 95.36, 142.93 and 83.98

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Solution

The fourth proportional to 95.36, 142.93 and 83.98 is: 125.87

Step by Step Solution

  1. Step 1: Write the proportion equation
    95.36 : 142.93 = 83.98 : x
  2. Step 2: Convert to fraction form
    95.36/142.93 = 83.98/x
  3. Step 3: Cross multiply
    95.36x = 142.93 × 83.98
  4. Step 4: Simplify right side
    95.36x = 12,003.26
  5. Step 5: Solve for x
    x = 12,003.26/95.36
  6. Step 6: Final answer
    x = 125.87

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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.