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Finding the Fourth Proportional to 481,991.68, 722,841.79 and 144,942.87

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Solution

The fourth proportional to 481,991.68, 722,841.79 and 144,942.87 is: 217,370.48

Step by Step Solution

  1. Step 1: Write the proportion equation
    481,991.68 : 722,841.79 = 144,942.87 : x
  2. Step 2: Convert to fraction form
    481,991.68/722,841.79 = 144,942.87/x
  3. Step 3: Cross multiply
    481,991.68x = 722,841.79 × 144,942.87
  4. Step 4: Simplify right side
    481,991.68x = 104,770,762,152.62
  5. Step 5: Solve for x
    x = 104,770,762,152.62/481,991.68
  6. Step 6: Final answer
    x = 217,370.48

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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.