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Finding the Fourth Proportional to 311,993.52, 468,048.58 and 125,019.60

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Solution

The fourth proportional to 311,993.52, 468,048.58 and 125,019.60 is: 187,552.76

Step by Step Solution

  1. Step 1: Write the proportion equation
    311,993.52 : 468,048.58 = 125,019.60 : x
  2. Step 2: Convert to fraction form
    311,993.52/468,048.58 = 125,019.60/x
  3. Step 3: Cross multiply
    311,993.52x = 468,048.58 × 125,019.60
  4. Step 4: Simplify right side
    311,993.52x = 58,515,246,252.17
  5. Step 5: Solve for x
    x = 58,515,246,252.17/311,993.52
  6. Step 6: Final answer
    x = 187,552.76

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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.