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Finding the Fourth Proportional to 79,551.99, 109,782.15 and 43,744.32

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Solution

The fourth proportional to 79,551.99, 109,782.15 and 43,744.32 is: 60,367.38

Step by Step Solution

  1. Step 1: Write the proportion equation
    79,551.99 : 109,782.15 = 43,744.32 : x
  2. Step 2: Convert to fraction form
    79,551.99/109,782.15 = 43,744.32/x
  3. Step 3: Cross multiply
    79,551.99x = 109,782.15 × 43,744.32
  4. Step 4: Simplify right side
    79,551.99x = 4,802,344,732.26
  5. Step 5: Solve for x
    x = 4,802,344,732.26/79,551.99
  6. Step 6: Final answer
    x = 60,367.38

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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.