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Finding the Fourth Proportional to 68,391.38, 94,389.64 and 41,529.90

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Solution

The fourth proportional to 68,391.38, 94,389.64 and 41,529.90 is: 57,317.05

Step by Step Solution

  1. Step 1: Write the proportion equation
    68,391.38 : 94,389.64 = 41,529.90 : x
  2. Step 2: Convert to fraction form
    68,391.38/94,389.64 = 41,529.90/x
  3. Step 3: Cross multiply
    68,391.38x = 94,389.64 × 41,529.90
  4. Step 4: Simplify right side
    68,391.38x = 3,919,992,310.24
  5. Step 5: Solve for x
    x = 3,919,992,310.24/68,391.38
  6. Step 6: Final answer
    x = 57,317.05

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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.