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Finding the Fourth Proportional to 441,141.75, 661,712.63 and 108,717.75

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Solution

The fourth proportional to 441,141.75, 661,712.63 and 108,717.75 is: 163,076.63

Step by Step Solution

  1. Step 1: Write the proportion equation
    441,141.75 : 661,712.63 = 108,717.75 : x
  2. Step 2: Convert to fraction form
    441,141.75/661,712.63 = 108,717.75/x
  3. Step 3: Cross multiply
    441,141.75x = 661,712.63 × 108,717.75
  4. Step 4: Simplify right side
    441,141.75x = 71,939,907,736.59
  5. Step 5: Solve for x
    x = 71,939,907,736.59/441,141.75
  6. Step 6: Final answer
    x = 163,076.63

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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.