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Finding the Fourth Proportional to 309,576.73, 464,396.88 and 107,172.52

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Solution

The fourth proportional to 309,576.73, 464,396.88 and 107,172.52 is: 160,769.78

Step by Step Solution

  1. Step 1: Write the proportion equation
    309,576.73 : 464,396.88 = 107,172.52 : x
  2. Step 2: Convert to fraction form
    309,576.73/464,396.88 = 107,172.52/x
  3. Step 3: Cross multiply
    309,576.73x = 464,396.88 × 107,172.52
  4. Step 4: Simplify right side
    309,576.73x = 49,770,583,909.74
  5. Step 5: Solve for x
    x = 49,770,583,909.74/309,576.73
  6. Step 6: Final answer
    x = 160,769.78

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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.