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Finding the Fourth Proportional to 441,400.96, 662,105.28 and 108,979.84

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Solution

The fourth proportional to 441,400.96, 662,105.28 and 108,979.84 is: 163,470.71

Step by Step Solution

  1. Step 1: Write the proportion equation
    441,400.96 : 662,105.28 = 108,979.84 : x
  2. Step 2: Convert to fraction form
    441,400.96/662,105.28 = 108,979.84/x
  3. Step 3: Cross multiply
    441,400.96x = 662,105.28 × 108,979.84
  4. Step 4: Simplify right side
    441,400.96x = 72,156,127,477.56
  5. Step 5: Solve for x
    x = 72,156,127,477.56/441,400.96
  6. Step 6: Final answer
    x = 163,470.71

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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.