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Finding the Fourth Proportional to 79,797.63, 110,121.09 and 43,986.87

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Solution

The fourth proportional to 79,797.63, 110,121.09 and 43,986.87 is: 60,702.08

Step by Step Solution

  1. Step 1: Write the proportion equation
    79,797.63 : 110,121.09 = 43,986.87 : x
  2. Step 2: Convert to fraction form
    79,797.63/110,121.09 = 43,986.87/x
  3. Step 3: Cross multiply
    79,797.63x = 110,121.09 × 43,986.87
  4. Step 4: Simplify right side
    79,797.63x = 4,843,882,070.09
  5. Step 5: Solve for x
    x = 4,843,882,070.09/79,797.63
  6. Step 6: Final answer
    x = 60,702.08

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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.