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Finding the Fourth Proportional to 165,855.38, 248,783.09 and 55,047.38

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Solution

The fourth proportional to 165,855.38, 248,783.09 and 55,047.38 is: 82,571.07

Step by Step Solution

  1. Step 1: Write the proportion equation
    165,855.38 : 248,783.09 = 55,047.38 : x
  2. Step 2: Convert to fraction form
    165,855.38/248,783.09 = 55,047.38/x
  3. Step 3: Cross multiply
    165,855.38x = 248,783.09 × 55,047.38
  4. Step 4: Simplify right side
    165,855.38x = 13,694,855,773.65
  5. Step 5: Solve for x
    x = 13,694,855,773.65/165,855.38
  6. Step 6: Final answer
    x = 82,571.07

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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.