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Finding the Fourth Proportional to 166,199.94, 229,355.01 and 90,747.90

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Solution

The fourth proportional to 166,199.94, 229,355.01 and 90,747.90 is: 125,231.61

Step by Step Solution

  1. Step 1: Write the proportion equation
    166,199.94 : 229,355.01 = 90,747.90 : x
  2. Step 2: Convert to fraction form
    166,199.94/229,355.01 = 90,747.90/x
  3. Step 3: Cross multiply
    166,199.94x = 229,355.01 × 90,747.90
  4. Step 4: Simplify right side
    166,199.94x = 20,813,485,511.98
  5. Step 5: Solve for x
    x = 20,813,485,511.98/166,199.94
  6. Step 6: Final answer
    x = 125,231.61

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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.