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Finding the Fourth Proportional to 351,144.99, 484,576.62 and 189,996.50

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Solution

The fourth proportional to 351,144.99, 484,576.62 and 189,996.50 is: 262,193.30

Step by Step Solution

  1. Step 1: Write the proportion equation
    351,144.99 : 484,576.62 = 189,996.50 : x
  2. Step 2: Convert to fraction form
    351,144.99/484,576.62 = 189,996.50/x
  3. Step 3: Cross multiply
    351,144.99x = 484,576.62 × 189,996.50
  4. Step 4: Simplify right side
    351,144.99x = 92,067,861,781.83
  5. Step 5: Solve for x
    x = 92,067,861,781.83/351,144.99
  6. Step 6: Final answer
    x = 262,193.30

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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.