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Finding the Fourth Proportional to 441,399.21, 662,104.98 and 125,856.24

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Solution

The fourth proportional to 441,399.21, 662,104.98 and 125,856.24 is: 188,786.12

Step by Step Solution

  1. Step 1: Write the proportion equation
    441,399.21 : 662,104.98 = 125,856.24 : x
  2. Step 2: Convert to fraction form
    441,399.21/662,104.98 = 125,856.24/x
  3. Step 3: Cross multiply
    441,399.21x = 662,104.98 × 125,856.24
  4. Step 4: Simplify right side
    441,399.21x = 83,330,043,268.08
  5. Step 5: Solve for x
    x = 83,330,043,268.08/441,399.21
  6. Step 6: Final answer
    x = 188,786.12

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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.