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Finding the Fourth Proportional to 117,757.44, 162,466.56 and 73,036.80

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Solution

The fourth proportional to 117,757.44, 162,466.56 and 73,036.80 is: 100,766.78

Step by Step Solution

  1. Step 1: Write the proportion equation
    117,757.44 : 162,466.56 = 73,036.80 : x
  2. Step 2: Convert to fraction form
    117,757.44/162,466.56 = 73,036.80/x
  3. Step 3: Cross multiply
    117,757.44x = 162,466.56 × 73,036.80
  4. Step 4: Simplify right side
    117,757.44x = 11,866,037,649.41
  5. Step 5: Solve for x
    x = 11,866,037,649.41/117,757.44
  6. Step 6: Final answer
    x = 100,766.78

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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.