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Finding the Fourth Proportional to 104,098.75, 143,898.39 and 92,879.44

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Solution

The fourth proportional to 104,098.75, 143,898.39 and 92,879.44 is: 128,389.65

Step by Step Solution

  1. Step 1: Write the proportion equation
    104,098.75 : 143,898.39 = 92,879.44 : x
  2. Step 2: Convert to fraction form
    104,098.75/143,898.39 = 92,879.44/x
  3. Step 3: Cross multiply
    104,098.75x = 143,898.39 × 92,879.44
  4. Step 4: Simplify right side
    104,098.75x = 13,365,201,520.36
  5. Step 5: Solve for x
    x = 13,365,201,520.36/104,098.75
  6. Step 6: Final answer
    x = 128,389.65

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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.