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Finding the Fourth Proportional to 78,893.44, 108,873.84 and 43,083.88

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Solution

The fourth proportional to 78,893.44, 108,873.84 and 43,083.88 is: 59,456.24

Step by Step Solution

  1. Step 1: Write the proportion equation
    78,893.44 : 108,873.84 = 43,083.88 : x
  2. Step 2: Convert to fraction form
    78,893.44/108,873.84 = 43,083.88/x
  3. Step 3: Cross multiply
    78,893.44x = 108,873.84 × 43,083.88
  4. Step 4: Simplify right side
    78,893.44x = 4,690,707,457.70
  5. Step 5: Solve for x
    x = 4,690,707,457.70/78,893.44
  6. Step 6: Final answer
    x = 59,456.24

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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.