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Finding the Fourth Proportional to 79,571.25, 109,808.33 and 43,763.58

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Solution

The fourth proportional to 79,571.25, 109,808.33 and 43,763.58 is: 60,393.74

Step by Step Solution

  1. Step 1: Write the proportion equation
    79,571.25 : 109,808.33 = 43,763.58 : x
  2. Step 2: Convert to fraction form
    79,571.25/109,808.33 = 43,763.58/x
  3. Step 3: Cross multiply
    79,571.25x = 109,808.33 × 43,763.58
  4. Step 4: Simplify right side
    79,571.25x = 4,805,605,415.80
  5. Step 5: Solve for x
    x = 4,805,605,415.80/79,571.25
  6. Step 6: Final answer
    x = 60,393.74

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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.