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Finding the Fourth Proportional to 95.84, 143.76 and 63.76

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Solution

The fourth proportional to 95.84, 143.76 and 63.76 is: 95.64

Step by Step Solution

  1. Step 1: Write the proportion equation
    95.84 : 143.76 = 63.76 : x
  2. Step 2: Convert to fraction form
    95.84/143.76 = 63.76/x
  3. Step 3: Cross multiply
    95.84x = 143.76 × 63.76
  4. Step 4: Simplify right side
    95.84x = 9,166.14
  5. Step 5: Solve for x
    x = 9,166.14/95.84
  6. Step 6: Final answer
    x = 95.64

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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.