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Finding the Fourth Proportional to 95.52, 143.24 and 52.76

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Solution

The fourth proportional to 95.52, 143.24 and 52.76 is: 79.12

Step by Step Solution

  1. Step 1: Write the proportion equation
    95.52 : 143.24 = 52.76 : x
  2. Step 2: Convert to fraction form
    95.52/143.24 = 52.76/x
  3. Step 3: Cross multiply
    95.52x = 143.24 × 52.76
  4. Step 4: Simplify right side
    95.52x = 7,557.34
  5. Step 5: Solve for x
    x = 7,557.34/95.52
  6. Step 6: Final answer
    x = 79.12

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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.