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Finding the Fourth Proportional to 68,773.24, 103,137.90 and 22,015

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Solution

The fourth proportional to 68,773.24, 103,137.90 and 22,015 is: 33,015.47

Step by Step Solution

  1. Step 1: Write the proportion equation
    68,773.24 : 103,137.90 = 22,015 : x
  2. Step 2: Convert to fraction form
    68,773.24/103,137.90 = 22,015/x
  3. Step 3: Cross multiply
    68,773.24x = 103,137.90 × 22,015
  4. Step 4: Simplify right side
    68,773.24x = 2,270,580,868.50
  5. Step 5: Solve for x
    x = 2,270,580,868.50/68,773.24
  6. Step 6: Final answer
    x = 33,015.47

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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.