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Finding the Fourth Proportional to 66,209.92, 99,314.64 and 26,766.56

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Solution

The fourth proportional to 66,209.92, 99,314.64 and 26,766.56 is: 40,149.74

Step by Step Solution

  1. Step 1: Write the proportion equation
    66,209.92 : 99,314.64 = 26,766.56 : x
  2. Step 2: Convert to fraction form
    66,209.92/99,314.64 = 26,766.56/x
  3. Step 3: Cross multiply
    66,209.92x = 99,314.64 × 26,766.56
  4. Step 4: Simplify right side
    66,209.92x = 2,658,311,270.44
  5. Step 5: Solve for x
    x = 2,658,311,270.44/66,209.92
  6. Step 6: Final answer
    x = 40,149.74

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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.