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Finding the Fourth Proportional to 69,199.65, 103,783.55 and 27,080.73

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Solution

The fourth proportional to 69,199.65, 103,783.55 and 27,080.73 is: 40,614.86

Step by Step Solution

  1. Step 1: Write the proportion equation
    69,199.65 : 103,783.55 = 27,080.73 : x
  2. Step 2: Convert to fraction form
    69,199.65/103,783.55 = 27,080.73/x
  3. Step 3: Cross multiply
    69,199.65x = 103,783.55 × 27,080.73
  4. Step 4: Simplify right side
    69,199.65x = 2,810,534,160.59
  5. Step 5: Solve for x
    x = 2,810,534,160.59/69,199.65
  6. Step 6: Final answer
    x = 40,614.86

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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.