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Finding the Fourth Proportional to 445,069.75, 667,688.33 and 178,851.37

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Solution

The fourth proportional to 445,069.75, 667,688.33 and 178,851.37 is: 268,310.69

Step by Step Solution

  1. Step 1: Write the proportion equation
    445,069.75 : 667,688.33 = 178,851.37 : x
  2. Step 2: Convert to fraction form
    445,069.75/667,688.33 = 178,851.37/x
  3. Step 3: Cross multiply
    445,069.75x = 667,688.33 × 178,851.37
  4. Step 4: Simplify right side
    445,069.75x = 119,416,972,553.51
  5. Step 5: Solve for x
    x = 119,416,972,553.51/445,069.75
  6. Step 6: Final answer
    x = 268,310.69

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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.