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Finding the Fourth Proportional to 188,840.70, 283,163.85 and 70,451.10

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Solution

The fourth proportional to 188,840.70, 283,163.85 and 70,451.10 is: 105,640.39

Step by Step Solution

  1. Step 1: Write the proportion equation
    188,840.70 : 283,163.85 = 70,451.10 : x
  2. Step 2: Convert to fraction form
    188,840.70/283,163.85 = 70,451.10/x
  3. Step 3: Cross multiply
    188,840.70x = 283,163.85 × 70,451.10
  4. Step 4: Simplify right side
    188,840.70x = 19,949,204,712.74
  5. Step 5: Solve for x
    x = 19,949,204,712.74/188,840.70
  6. Step 6: Final answer
    x = 105,640.39

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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.