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Finding the Fourth Proportional to 445,068.75, 667,686.83 and 178,850.37

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Solution

The fourth proportional to 445,068.75, 667,686.83 and 178,850.37 is: 268,309.19

Step by Step Solution

  1. Step 1: Write the proportion equation
    445,068.75 : 667,686.83 = 178,850.37 : x
  2. Step 2: Convert to fraction form
    445,068.75/667,686.83 = 178,850.37/x
  3. Step 3: Cross multiply
    445,068.75x = 667,686.83 × 178,850.37
  4. Step 4: Simplify right side
    445,068.75x = 119,416,035,695.38
  5. Step 5: Solve for x
    x = 119,416,035,695.38/445,068.75
  6. Step 6: Final answer
    x = 268,309.19

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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.