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Finding the Fourth Proportional to 79,561.87, 109,796.16 and 43,752.13

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Solution

The fourth proportional to 79,561.87, 109,796.16 and 43,752.13 is: 60,378.37

Step by Step Solution

  1. Step 1: Write the proportion equation
    79,561.87 : 109,796.16 = 43,752.13 : x
  2. Step 2: Convert to fraction form
    79,561.87/109,796.16 = 43,752.13/x
  3. Step 3: Cross multiply
    79,561.87x = 109,796.16 × 43,752.13
  4. Step 4: Simplify right side
    79,561.87x = 4,803,815,865.82
  5. Step 5: Solve for x
    x = 4,803,815,865.82/79,561.87
  6. Step 6: Final answer
    x = 60,378.37

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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.