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Finding the Fourth Proportional to 99,806.44, 137,727.04 and 54,475.44

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Solution

The fourth proportional to 99,806.44, 137,727.04 and 54,475.44 is: 75,172.92

Step by Step Solution

  1. Step 1: Write the proportion equation
    99,806.44 : 137,727.04 = 54,475.44 : x
  2. Step 2: Convert to fraction form
    99,806.44/137,727.04 = 54,475.44/x
  3. Step 3: Cross multiply
    99,806.44x = 137,727.04 × 54,475.44
  4. Step 4: Simplify right side
    99,806.44x = 7,502,741,103.90
  5. Step 5: Solve for x
    x = 7,502,741,103.90/99,806.44
  6. Step 6: Final answer
    x = 75,172.92

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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.