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Finding the Fourth Proportional to 366,805.38, 550,209.88 and 166,986

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Solution

The fourth proportional to 366,805.38, 550,209.88 and 166,986 is: 250,479.82

Step by Step Solution

  1. Step 1: Write the proportion equation
    366,805.38 : 550,209.88 = 166,986 : x
  2. Step 2: Convert to fraction form
    366,805.38/550,209.88 = 166,986/x
  3. Step 3: Cross multiply
    366,805.38x = 550,209.88 × 166,986
  4. Step 4: Simplify right side
    366,805.38x = 91,877,347,021.68
  5. Step 5: Solve for x
    x = 91,877,347,021.68/366,805.38
  6. Step 6: Final answer
    x = 250,479.82

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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.