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Finding the Fourth Proportional to 79,553.84, 109,786.80 and 43,746.44

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Solution

The fourth proportional to 79,553.84, 109,786.80 and 43,746.44 is: 60,371.46

Step by Step Solution

  1. Step 1: Write the proportion equation
    79,553.84 : 109,786.80 = 43,746.44 : x
  2. Step 2: Convert to fraction form
    79,553.84/109,786.80 = 43,746.44/x
  3. Step 3: Cross multiply
    79,553.84x = 109,786.80 × 43,746.44
  4. Step 4: Simplify right side
    79,553.84x = 4,802,781,658.99
  5. Step 5: Solve for x
    x = 4,802,781,658.99/79,553.84
  6. Step 6: Final answer
    x = 60,371.46

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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.