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Finding the Fourth Proportional to 69,865.92, 96,251.04 and 48,608.64

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Solution

The fourth proportional to 69,865.92, 96,251.04 and 48,608.64 is: 66,965.87

Step by Step Solution

  1. Step 1: Write the proportion equation
    69,865.92 : 96,251.04 = 48,608.64 : x
  2. Step 2: Convert to fraction form
    69,865.92/96,251.04 = 48,608.64/x
  3. Step 3: Cross multiply
    69,865.92x = 96,251.04 × 48,608.64
  4. Step 4: Simplify right side
    69,865.92x = 4,678,632,152.99
  5. Step 5: Solve for x
    x = 4,678,632,152.99/69,865.92
  6. Step 6: Final answer
    x = 66,965.87

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Why These Related Problems?

These problems maintain the same ratio (1.38) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.