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Finding the Fourth Proportional to 199,787.66, 299,649.12 and 73,396.83

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Solution

The fourth proportional to 199,787.66, 299,649.12 and 73,396.83 is: 110,083.36

Step by Step Solution

  1. Step 1: Write the proportion equation
    199,787.66 : 299,649.12 = 73,396.83 : x
  2. Step 2: Convert to fraction form
    199,787.66/299,649.12 = 73,396.83/x
  3. Step 3: Cross multiply
    199,787.66x = 299,649.12 × 73,396.83
  4. Step 4: Simplify right side
    199,787.66x = 21,993,296,781.59
  5. Step 5: Solve for x
    x = 21,993,296,781.59/199,787.66
  6. Step 6: Final answer
    x = 110,083.36

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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.