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Finding the Fourth Proportional to 263,799.98, 395,696.51 and 64,119.78

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Solution

The fourth proportional to 263,799.98, 395,696.51 and 64,119.78 is: 96,178.83

Step by Step Solution

  1. Step 1: Write the proportion equation
    263,799.98 : 395,696.51 = 64,119.78 : x
  2. Step 2: Convert to fraction form
    263,799.98/395,696.51 = 64,119.78/x
  3. Step 3: Cross multiply
    263,799.98x = 395,696.51 × 64,119.78
  4. Step 4: Simplify right side
    263,799.98x = 25,371,972,847.37
  5. Step 5: Solve for x
    x = 25,371,972,847.37/263,799.98
  6. Step 6: Final answer
    x = 96,178.83

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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.