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Finding the Fourth Proportional to 441,399.87, 662,105.91 and 125,856.74

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Solution

The fourth proportional to 441,399.87, 662,105.91 and 125,856.74 is: 188,786.84

Step by Step Solution

  1. Step 1: Write the proportion equation
    441,399.87 : 662,105.91 = 125,856.74 : x
  2. Step 2: Convert to fraction form
    441,399.87/662,105.91 = 125,856.74/x
  3. Step 3: Cross multiply
    441,399.87x = 662,105.91 × 125,856.74
  4. Step 4: Simplify right side
    441,399.87x = 83,330,488,056.80
  5. Step 5: Solve for x
    x = 83,330,488,056.80/441,399.87
  6. Step 6: Final answer
    x = 188,786.84

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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.