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Finding the Fourth Proportional to 73,200.44, 109,790.94 and 20,614.03

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Solution

The fourth proportional to 73,200.44, 109,790.94 and 20,614.03 is: 30,918.30

Step by Step Solution

  1. Step 1: Write the proportion equation
    73,200.44 : 109,790.94 = 20,614.03 : x
  2. Step 2: Convert to fraction form
    73,200.44/109,790.94 = 20,614.03/x
  3. Step 3: Cross multiply
    73,200.44x = 109,790.94 × 20,614.03
  4. Step 4: Simplify right side
    73,200.44x = 2,263,233,533.71
  5. Step 5: Solve for x
    x = 2,263,233,533.71/73,200.44
  6. Step 6: Final answer
    x = 30,918.30

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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.