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Finding the Fourth Proportional to 85,169.94, 117,533.57 and 48,375.89

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Solution

The fourth proportional to 85,169.94, 117,533.57 and 48,375.89 is: 66,758.19

Step by Step Solution

  1. Step 1: Write the proportion equation
    85,169.94 : 117,533.57 = 48,375.89 : x
  2. Step 2: Convert to fraction form
    85,169.94/117,533.57 = 48,375.89/x
  3. Step 3: Cross multiply
    85,169.94x = 117,533.57 × 48,375.89
  4. Step 4: Simplify right side
    85,169.94x = 5,685,790,811.75
  5. Step 5: Solve for x
    x = 5,685,790,811.75/85,169.94
  6. Step 6: Final answer
    x = 66,758.19

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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.