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Finding the Fourth Proportional to 68,512.64, 94,562.69 and 41,649.44

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Solution

The fourth proportional to 68,512.64, 94,562.69 and 41,649.44 is: 57,485.50

Step by Step Solution

  1. Step 1: Write the proportion equation
    68,512.64 : 94,562.69 = 41,649.44 : x
  2. Step 2: Convert to fraction form
    68,512.64/94,562.69 = 41,649.44/x
  3. Step 3: Cross multiply
    68,512.64x = 94,562.69 × 41,649.44
  4. Step 4: Simplify right side
    68,512.64x = 3,938,483,168.53
  5. Step 5: Solve for x
    x = 3,938,483,168.53/68,512.64
  6. Step 6: Final answer
    x = 57,485.50

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Why These Related Problems?

These problems maintain the same ratio (1.38) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.