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Finding the Fourth Proportional to 202,822.02, 279,891.99 and 112,170.87

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Solution

The fourth proportional to 202,822.02, 279,891.99 and 112,170.87 is: 154,794.47

Step by Step Solution

  1. Step 1: Write the proportion equation
    202,822.02 : 279,891.99 = 112,170.87 : x
  2. Step 2: Convert to fraction form
    202,822.02/279,891.99 = 112,170.87/x
  3. Step 3: Cross multiply
    202,822.02x = 279,891.99 × 112,170.87
  4. Step 4: Simplify right side
    202,822.02x = 31,395,728,024.33
  5. Step 5: Solve for x
    x = 31,395,728,024.33/202,822.02
  6. Step 6: Final answer
    x = 154,794.47

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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.