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Finding the Fourth Proportional to 79,575.36, 109,813.44 and 43,764.48

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Solution

The fourth proportional to 79,575.36, 109,813.44 and 43,764.48 is: 60,394.68

Step by Step Solution

  1. Step 1: Write the proportion equation
    79,575.36 : 109,813.44 = 43,764.48 : x
  2. Step 2: Convert to fraction form
    79,575.36/109,813.44 = 43,764.48/x
  3. Step 3: Cross multiply
    79,575.36x = 109,813.44 × 43,764.48
  4. Step 4: Simplify right side
    79,575.36x = 4,805,928,098.61
  5. Step 5: Solve for x
    x = 4,805,928,098.61/79,575.36
  6. Step 6: Final answer
    x = 60,394.68

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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.