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Finding the Fourth Proportional to 66,704.54, 100,091.30 and 29,290.88

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Solution

The fourth proportional to 66,704.54, 100,091.30 and 29,290.88 is: 43,951.46

Step by Step Solution

  1. Step 1: Write the proportion equation
    66,704.54 : 100,091.30 = 29,290.88 : x
  2. Step 2: Convert to fraction form
    66,704.54/100,091.30 = 29,290.88/x
  3. Step 3: Cross multiply
    66,704.54x = 100,091.30 × 29,290.88
  4. Step 4: Simplify right side
    66,704.54x = 2,931,761,610.43
  5. Step 5: Solve for x
    x = 2,931,761,610.43/66,704.54
  6. Step 6: Final answer
    x = 43,951.46

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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.