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Finding the Fourth Proportional to 66,756.74, 92,082.82 and 41,270.90

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Solution

The fourth proportional to 66,756.74, 92,082.82 and 41,270.90 is: 56,928.20

Step by Step Solution

  1. Step 1: Write the proportion equation
    66,756.74 : 92,082.82 = 41,270.90 : x
  2. Step 2: Convert to fraction form
    66,756.74/92,082.82 = 41,270.90/x
  3. Step 3: Cross multiply
    66,756.74x = 92,082.82 × 41,270.90
  4. Step 4: Simplify right side
    66,756.74x = 3,800,340,982.97
  5. Step 5: Solve for x
    x = 3,800,340,982.97/66,756.74
  6. Step 6: Final answer
    x = 56,928.20

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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.