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Finding the Fourth Proportional to 66,901.75, 100,155.79 and 44,659.96

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Solution

The fourth proportional to 66,901.75, 100,155.79 and 44,659.96 is: 66,858.54

Step by Step Solution

  1. Step 1: Write the proportion equation
    66,901.75 : 100,155.79 = 44,659.96 : x
  2. Step 2: Convert to fraction form
    66,901.75/100,155.79 = 44,659.96/x
  3. Step 3: Cross multiply
    66,901.75x = 100,155.79 × 44,659.96
  4. Step 4: Simplify right side
    66,901.75x = 4,472,953,380.60
  5. Step 5: Solve for x
    x = 4,472,953,380.60/66,901.75
  6. Step 6: Final answer
    x = 66,858.54

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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.