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Finding the Fourth Proportional to 79,553.54, 109,784.28 and 43,745.86

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Solution

The fourth proportional to 79,553.54, 109,784.28 and 43,745.86 is: 60,369.50

Step by Step Solution

  1. Step 1: Write the proportion equation
    79,553.54 : 109,784.28 = 43,745.86 : x
  2. Step 2: Convert to fraction form
    79,553.54/109,784.28 = 43,745.86/x
  3. Step 3: Cross multiply
    79,553.54x = 109,784.28 × 43,745.86
  4. Step 4: Simplify right side
    79,553.54x = 4,802,607,743.08
  5. Step 5: Solve for x
    x = 4,802,607,743.08/79,553.54
  6. Step 6: Final answer
    x = 60,369.50

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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.