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Finding the Fourth Proportional to 73,794.65, 110,699.88 and 20,486.85

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Solution

The fourth proportional to 73,794.65, 110,699.88 and 20,486.85 is: 30,732.47

Step by Step Solution

  1. Step 1: Write the proportion equation
    73,794.65 : 110,699.88 = 20,486.85 : x
  2. Step 2: Convert to fraction form
    73,794.65/110,699.88 = 20,486.85/x
  3. Step 3: Cross multiply
    73,794.65x = 110,699.88 × 20,486.85
  4. Step 4: Simplify right side
    73,794.65x = 2,267,891,836.58
  5. Step 5: Solve for x
    x = 2,267,891,836.58/73,794.65
  6. Step 6: Final answer
    x = 30,732.47

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Why These Related Problems?

These problems maintain the same ratio (1.50) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.