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Finding the Fourth Proportional to 96.92, 145.46 and 56.37

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Solution

The fourth proportional to 96.92, 145.46 and 56.37 is: 84.60

Step by Step Solution

  1. Step 1: Write the proportion equation
    96.92 : 145.46 = 56.37 : x
  2. Step 2: Convert to fraction form
    96.92/145.46 = 56.37/x
  3. Step 3: Cross multiply
    96.92x = 145.46 × 56.37
  4. Step 4: Simplify right side
    96.92x = 8,199.58
  5. Step 5: Solve for x
    x = 8,199.58/96.92
  6. Step 6: Final answer
    x = 84.60

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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.