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Finding the Fourth Proportional to 144,991.27, 217,195.88 and 73,911.03

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Solution

The fourth proportional to 144,991.27, 217,195.88 and 73,911.03 is: 110,718.20

Step by Step Solution

  1. Step 1: Write the proportion equation
    144,991.27 : 217,195.88 = 73,911.03 : x
  2. Step 2: Convert to fraction form
    144,991.27/217,195.88 = 73,911.03/x
  3. Step 3: Cross multiply
    144,991.27x = 217,195.88 × 73,911.03
  4. Step 4: Simplify right side
    144,991.27x = 16,053,171,655.99
  5. Step 5: Solve for x
    x = 16,053,171,655.99/144,991.27
  6. Step 6: Final answer
    x = 110,718.20

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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.