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Finding the Fourth Proportional to 81,044.68, 111,893.02 and 55,593.68

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Solution

The fourth proportional to 81,044.68, 111,893.02 and 55,593.68 is: 76,754.51

Step by Step Solution

  1. Step 1: Write the proportion equation
    81,044.68 : 111,893.02 = 55,593.68 : x
  2. Step 2: Convert to fraction form
    81,044.68/111,893.02 = 55,593.68/x
  3. Step 3: Cross multiply
    81,044.68x = 111,893.02 × 55,593.68
  4. Step 4: Simplify right side
    81,044.68x = 6,220,544,748.11
  5. Step 5: Solve for x
    x = 6,220,544,748.11/81,044.68
  6. Step 6: Final answer
    x = 76,754.51

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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.