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Finding the Fourth Proportional to 66,786.08, 100,188.48 and 27,348.80

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Solution

The fourth proportional to 66,786.08, 100,188.48 and 27,348.80 is: 41,027.03

Step by Step Solution

  1. Step 1: Write the proportion equation
    66,786.08 : 100,188.48 = 27,348.80 : x
  2. Step 2: Convert to fraction form
    66,786.08/100,188.48 = 27,348.80/x
  3. Step 3: Cross multiply
    66,786.08x = 100,188.48 × 27,348.80
  4. Step 4: Simplify right side
    66,786.08x = 2,740,034,701.82
  5. Step 5: Solve for x
    x = 2,740,034,701.82/66,786.08
  6. Step 6: Final answer
    x = 41,027.03

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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.