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Finding the Fourth Proportional to 73,069.98, 100,836.72 and 40,804.44

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Solution

The fourth proportional to 73,069.98, 100,836.72 and 40,804.44 is: 56,310.21

Step by Step Solution

  1. Step 1: Write the proportion equation
    73,069.98 : 100,836.72 = 40,804.44 : x
  2. Step 2: Convert to fraction form
    73,069.98/100,836.72 = 40,804.44/x
  3. Step 3: Cross multiply
    73,069.98x = 100,836.72 × 40,804.44
  4. Step 4: Simplify right side
    73,069.98x = 4,114,585,891.04
  5. Step 5: Solve for x
    x = 4,114,585,891.04/73,069.98
  6. Step 6: Final answer
    x = 56,310.21

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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.