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Finding the Fourth Proportional to 66,764.22, 92,134.87 and 36,549.80

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Solution

The fourth proportional to 66,764.22, 92,134.87 and 36,549.80 is: 50,438.86

Step by Step Solution

  1. Step 1: Write the proportion equation
    66,764.22 : 92,134.87 = 36,549.80 : x
  2. Step 2: Convert to fraction form
    66,764.22/92,134.87 = 36,549.80/x
  3. Step 3: Cross multiply
    66,764.22x = 92,134.87 × 36,549.80
  4. Step 4: Simplify right side
    66,764.22x = 3,367,510,864.98
  5. Step 5: Solve for x
    x = 3,367,510,864.98/66,764.22
  6. Step 6: Final answer
    x = 50,438.86

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Why These Related Problems?

These problems maintain the same ratio (1.38) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.