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Finding the Fourth Proportional to 199,763.40, 299,758.71 and 73,387.41

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Solution

The fourth proportional to 199,763.40, 299,758.71 and 73,387.41 is: 110,122.85

Step by Step Solution

  1. Step 1: Write the proportion equation
    199,763.40 : 299,758.71 = 73,387.41 : x
  2. Step 2: Convert to fraction form
    199,763.40/299,758.71 = 73,387.41/x
  3. Step 3: Cross multiply
    199,763.40x = 299,758.71 × 73,387.41
  4. Step 4: Simplify right side
    199,763.40x = 21,998,515,351.84
  5. Step 5: Solve for x
    x = 21,998,515,351.84/199,763.40
  6. Step 6: Final answer
    x = 110,122.85

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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.