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Finding the Fourth Proportional to 445,114.67, 667,672.84 and 108,155.60

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Solution

The fourth proportional to 445,114.67, 667,672.84 and 108,155.60 is: 162,233.61

Step by Step Solution

  1. Step 1: Write the proportion equation
    445,114.67 : 667,672.84 = 108,155.60 : x
  2. Step 2: Convert to fraction form
    445,114.67/667,672.84 = 108,155.60/x
  3. Step 3: Cross multiply
    445,114.67x = 667,672.84 × 108,155.60
  4. Step 4: Simplify right side
    445,114.67x = 72,212,558,012.70
  5. Step 5: Solve for x
    x = 72,212,558,012.70/445,114.67
  6. Step 6: Final answer
    x = 162,233.61

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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.