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Finding the Fourth Proportional to 308,363.45, 462,576.90 and 116,399.57

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Solution

The fourth proportional to 308,363.45, 462,576.90 and 116,399.57 is: 174,611.33

Step by Step Solution

  1. Step 1: Write the proportion equation
    308,363.45 : 462,576.90 = 116,399.57 : x
  2. Step 2: Convert to fraction form
    308,363.45/462,576.90 = 116,399.57/x
  3. Step 3: Cross multiply
    308,363.45x = 462,576.90 × 116,399.57
  4. Step 4: Simplify right side
    308,363.45x = 53,843,750,899.56
  5. Step 5: Solve for x
    x = 53,843,750,899.56/308,363.45
  6. Step 6: Final answer
    x = 174,611.33

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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.