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Finding the Fourth Proportional to 66,819.41, 92,210.80 and 36,605.81

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Solution

The fourth proportional to 66,819.41, 92,210.80 and 36,605.81 is: 50,516.03

Step by Step Solution

  1. Step 1: Write the proportion equation
    66,819.41 : 92,210.80 = 36,605.81 : x
  2. Step 2: Convert to fraction form
    66,819.41/92,210.80 = 36,605.81/x
  3. Step 3: Cross multiply
    66,819.41x = 92,210.80 × 36,605.81
  4. Step 4: Simplify right side
    66,819.41x = 3,375,451,163.76
  5. Step 5: Solve for x
    x = 3,375,451,163.76/66,819.41
  6. Step 6: Final answer
    x = 50,516.03

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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.