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Finding the Fourth Proportional to 68,805.32, 103,244.04 and 49,985.44

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Solution

The fourth proportional to 68,805.32, 103,244.04 and 49,985.44 is: 75,004.36

Step by Step Solution

  1. Step 1: Write the proportion equation
    68,805.32 : 103,244.04 = 49,985.44 : x
  2. Step 2: Convert to fraction form
    68,805.32/103,244.04 = 49,985.44/x
  3. Step 3: Cross multiply
    68,805.32x = 103,244.04 × 49,985.44
  4. Step 4: Simplify right side
    68,805.32x = 5,160,698,766.78
  5. Step 5: Solve for x
    x = 5,160,698,766.78/68,805.32
  6. Step 6: Final answer
    x = 75,004.36

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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.