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Finding the Fourth Proportional to 73,399.15, 110,102.91 and 20,804.50

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Solution

The fourth proportional to 73,399.15, 110,102.91 and 20,804.50 is: 31,207.94

Step by Step Solution

  1. Step 1: Write the proportion equation
    73,399.15 : 110,102.91 = 20,804.50 : x
  2. Step 2: Convert to fraction form
    73,399.15/110,102.91 = 20,804.50/x
  3. Step 3: Cross multiply
    73,399.15x = 110,102.91 × 20,804.50
  4. Step 4: Simplify right side
    73,399.15x = 2,290,635,991.10
  5. Step 5: Solve for x
    x = 2,290,635,991.10/73,399.15
  6. Step 6: Final answer
    x = 31,207.94

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Why These Related Problems?

These problems maintain the same ratio (1.50) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.