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Finding the Fourth Proportional to 79,605.90, 109,853.37 and 43,795.53

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Solution

The fourth proportional to 79,605.90, 109,853.37 and 43,795.53 is: 60,436.31

Step by Step Solution

  1. Step 1: Write the proportion equation
    79,605.90 : 109,853.37 = 43,795.53 : x
  2. Step 2: Convert to fraction form
    79,605.90/109,853.37 = 43,795.53/x
  3. Step 3: Cross multiply
    79,605.90x = 109,853.37 × 43,795.53
  4. Step 4: Simplify right side
    79,605.90x = 4,811,086,561.44
  5. Step 5: Solve for x
    x = 4,811,086,561.44/79,605.90
  6. Step 6: Final answer
    x = 60,436.31

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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.