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Finding the Fourth Proportional to 73,879.92, 101,992.32 and 43,674.48

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Solution

The fourth proportional to 73,879.92, 101,992.32 and 43,674.48 is: 60,293.26

Step by Step Solution

  1. Step 1: Write the proportion equation
    73,879.92 : 101,992.32 = 43,674.48 : x
  2. Step 2: Convert to fraction form
    73,879.92/101,992.32 = 43,674.48/x
  3. Step 3: Cross multiply
    73,879.92x = 101,992.32 × 43,674.48
  4. Step 4: Simplify right side
    73,879.92x = 4,454,461,539.99
  5. Step 5: Solve for x
    x = 4,454,461,539.99/73,879.92
  6. Step 6: Final answer
    x = 60,293.26

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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.