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Finding the Fourth Proportional to 79,855.80, 110,131.02 and 63,934.44

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Solution

The fourth proportional to 79,855.80, 110,131.02 and 63,934.44 is: 88,173.50

Step by Step Solution

  1. Step 1: Write the proportion equation
    79,855.80 : 110,131.02 = 63,934.44 : x
  2. Step 2: Convert to fraction form
    79,855.80/110,131.02 = 63,934.44/x
  3. Step 3: Cross multiply
    79,855.80x = 110,131.02 × 63,934.44
  4. Step 4: Simplify right side
    79,855.80x = 7,041,165,090.33
  5. Step 5: Solve for x
    x = 7,041,165,090.33/79,855.80
  6. Step 6: Final answer
    x = 88,173.50

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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.