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Finding the Fourth Proportional to 305,793.87, 458,676.09 and 103,376.49

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Solution

The fourth proportional to 305,793.87, 458,676.09 and 103,376.49 is: 155,059.76

Step by Step Solution

  1. Step 1: Write the proportion equation
    305,793.87 : 458,676.09 = 103,376.49 : x
  2. Step 2: Convert to fraction form
    305,793.87/458,676.09 = 103,376.49/x
  3. Step 3: Cross multiply
    305,793.87x = 458,676.09 × 103,376.49
  4. Step 4: Simplify right side
    305,793.87x = 47,416,324,231.12
  5. Step 5: Solve for x
    x = 47,416,324,231.12/305,793.87
  6. Step 6: Final answer
    x = 155,059.76

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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.