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Finding the Fourth Proportional to 68,379.25, 94,367.01 and 40,094.05

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Solution

The fourth proportional to 68,379.25, 94,367.01 and 40,094.05 is: 55,331.93

Step by Step Solution

  1. Step 1: Write the proportion equation
    68,379.25 : 94,367.01 = 40,094.05 : x
  2. Step 2: Convert to fraction form
    68,379.25/94,367.01 = 40,094.05/x
  3. Step 3: Cross multiply
    68,379.25x = 94,367.01 × 40,094.05
  4. Step 4: Simplify right side
    68,379.25x = 3,783,555,617.29
  5. Step 5: Solve for x
    x = 3,783,555,617.29/68,379.25
  6. Step 6: Final answer
    x = 55,331.93

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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.