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Finding the Fourth Proportional to 70,879.08, 106,384.50 and 35,843.88

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Solution

The fourth proportional to 70,879.08, 106,384.50 and 35,843.88 is: 53,799.14

Step by Step Solution

  1. Step 1: Write the proportion equation
    70,879.08 : 106,384.50 = 35,843.88 : x
  2. Step 2: Convert to fraction form
    70,879.08/106,384.50 = 35,843.88/x
  3. Step 3: Cross multiply
    70,879.08x = 106,384.50 × 35,843.88
  4. Step 4: Simplify right side
    70,879.08x = 3,813,233,251.86
  5. Step 5: Solve for x
    x = 3,813,233,251.86/70,879.08
  6. Step 6: Final answer
    x = 53,799.14

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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.