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Finding the Fourth Proportional to 445,850.67, 668,786.27 and 108,894.12

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Solution

The fourth proportional to 445,850.67, 668,786.27 and 108,894.12 is: 163,343.69

Step by Step Solution

  1. Step 1: Write the proportion equation
    445,850.67 : 668,786.27 = 108,894.12 : x
  2. Step 2: Convert to fraction form
    445,850.67/668,786.27 = 108,894.12/x
  3. Step 3: Cross multiply
    445,850.67x = 668,786.27 × 108,894.12
  4. Step 4: Simplify right side
    445,850.67x = 72,826,892,339.73
  5. Step 5: Solve for x
    x = 72,826,892,339.73/445,850.67
  6. Step 6: Final answer
    x = 163,343.69

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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.