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Finding the Fourth Proportional to 203,469.26, 280,801.96 and 112,833.90

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Solution

The fourth proportional to 203,469.26, 280,801.96 and 112,833.90 is: 155,718.76

Step by Step Solution

  1. Step 1: Write the proportion equation
    203,469.26 : 280,801.96 = 112,833.90 : x
  2. Step 2: Convert to fraction form
    203,469.26/280,801.96 = 112,833.90/x
  3. Step 3: Cross multiply
    203,469.26x = 280,801.96 × 112,833.90
  4. Step 4: Simplify right side
    203,469.26x = 31,683,979,992.36
  5. Step 5: Solve for x
    x = 31,683,979,992.36/203,469.26
  6. Step 6: Final answer
    x = 155,718.76

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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.