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Finding the Fourth Proportional to 66,800.52, 100,218.16 and 29,367.96

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Solution

The fourth proportional to 66,800.52, 100,218.16 and 29,367.96 is: 44,059.58

Step by Step Solution

  1. Step 1: Write the proportion equation
    66,800.52 : 100,218.16 = 29,367.96 : x
  2. Step 2: Convert to fraction form
    66,800.52/100,218.16 = 29,367.96/x
  3. Step 3: Cross multiply
    66,800.52x = 100,218.16 × 29,367.96
  4. Step 4: Simplify right side
    66,800.52x = 2,943,202,914.15
  5. Step 5: Solve for x
    x = 2,943,202,914.15/66,800.52
  6. Step 6: Final answer
    x = 44,059.58

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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.