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Finding the Fourth Proportional to 79,259.74, 109,379.22 and 43,450.48

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Solution

The fourth proportional to 79,259.74, 109,379.22 and 43,450.48 is: 59,962.09

Step by Step Solution

  1. Step 1: Write the proportion equation
    79,259.74 : 109,379.22 = 43,450.48 : x
  2. Step 2: Convert to fraction form
    79,259.74/109,379.22 = 43,450.48/x
  3. Step 3: Cross multiply
    79,259.74x = 109,379.22 × 43,450.48
  4. Step 4: Simplify right side
    79,259.74x = 4,752,579,611.03
  5. Step 5: Solve for x
    x = 4,752,579,611.03/79,259.74
  6. Step 6: Final answer
    x = 59,962.09

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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.