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Finding the Fourth Proportional to 68,907.44, 103,273.64 and 33,361.40

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Solution

The fourth proportional to 68,907.44, 103,273.64 and 33,361.40 is: 49,999.73

Step by Step Solution

  1. Step 1: Write the proportion equation
    68,907.44 : 103,273.64 = 33,361.40 : x
  2. Step 2: Convert to fraction form
    68,907.44/103,273.64 = 33,361.40/x
  3. Step 3: Cross multiply
    68,907.44x = 103,273.64 × 33,361.40
  4. Step 4: Simplify right side
    68,907.44x = 3,445,353,213.50
  5. Step 5: Solve for x
    x = 3,445,353,213.50/68,907.44
  6. Step 6: Final answer
    x = 49,999.73

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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.