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Finding the Fourth Proportional to 73,055.92, 109,579.77 and 19,747.11

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Solution

The fourth proportional to 73,055.92, 109,579.77 and 19,747.11 is: 29,619.56

Step by Step Solution

  1. Step 1: Write the proportion equation
    73,055.92 : 109,579.77 = 19,747.11 : x
  2. Step 2: Convert to fraction form
    73,055.92/109,579.77 = 19,747.11/x
  3. Step 3: Cross multiply
    73,055.92x = 109,579.77 × 19,747.11
  4. Step 4: Simplify right side
    73,055.92x = 2,163,883,771.96
  5. Step 5: Solve for x
    x = 2,163,883,771.96/73,055.92
  6. Step 6: Final answer
    x = 29,619.56

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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.