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Finding the Fourth Proportional to 73,054.13, 100,813.71 and 40,789.25

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Solution

The fourth proportional to 73,054.13, 100,813.71 and 40,789.25 is: 56,288.61

Step by Step Solution

  1. Step 1: Write the proportion equation
    73,054.13 : 100,813.71 = 40,789.25 : x
  2. Step 2: Convert to fraction form
    73,054.13/100,813.71 = 40,789.25/x
  3. Step 3: Cross multiply
    73,054.13x = 100,813.71 × 40,789.25
  4. Step 4: Simplify right side
    73,054.13x = 4,112,115,620.62
  5. Step 5: Solve for x
    x = 4,112,115,620.62/73,054.13
  6. Step 6: Final answer
    x = 56,288.61

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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.