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Finding the Fourth Proportional to 279,094.62, 385,260.14 and 197,847.54

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Solution

The fourth proportional to 279,094.62, 385,260.14 and 197,847.54 is: 273,107.27

Step by Step Solution

  1. Step 1: Write the proportion equation
    279,094.62 : 385,260.14 = 197,847.54 : x
  2. Step 2: Convert to fraction form
    279,094.62/385,260.14 = 197,847.54/x
  3. Step 3: Cross multiply
    279,094.62x = 385,260.14 × 197,847.54
  4. Step 4: Simplify right side
    279,094.62x = 76,222,770,959.06
  5. Step 5: Solve for x
    x = 76,222,770,959.06/279,094.62
  6. Step 6: Final answer
    x = 273,107.27

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Why These Related Problems?

These problems maintain the same ratio (1.38) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.