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Finding the Fourth Proportional to 66,829.85, 100,244.78 and 41,460.65

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Solution

The fourth proportional to 66,829.85, 100,244.78 and 41,460.65 is: 62,190.98

Step by Step Solution

  1. Step 1: Write the proportion equation
    66,829.85 : 100,244.78 = 41,460.65 : x
  2. Step 2: Convert to fraction form
    66,829.85/100,244.78 = 41,460.65/x
  3. Step 3: Cross multiply
    66,829.85x = 100,244.78 × 41,460.65
  4. Step 4: Simplify right side
    66,829.85x = 4,156,213,530.60
  5. Step 5: Solve for x
    x = 4,156,213,530.60/66,829.85
  6. Step 6: Final answer
    x = 62,190.98

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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.