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Finding the Fourth Proportional to 66,958.89, 100,466.50 and 41,679.54

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Solution

The fourth proportional to 66,958.89, 100,466.50 and 41,679.54 is: 62,536.84

Step by Step Solution

  1. Step 1: Write the proportion equation
    66,958.89 : 100,466.50 = 41,679.54 : x
  2. Step 2: Convert to fraction form
    66,958.89/100,466.50 = 41,679.54/x
  3. Step 3: Cross multiply
    66,958.89x = 100,466.50 × 41,679.54
  4. Step 4: Simplify right side
    66,958.89x = 4,187,397,401.21
  5. Step 5: Solve for x
    x = 4,187,397,401.21/66,958.89
  6. Step 6: Final answer
    x = 62,536.84

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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.