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Finding the Fourth Proportional to 100,862.82, 151,224.16 and 44,672.31

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Solution

The fourth proportional to 100,862.82, 151,224.16 and 44,672.31 is: 66,977.43

Step by Step Solution

  1. Step 1: Write the proportion equation
    100,862.82 : 151,224.16 = 44,672.31 : x
  2. Step 2: Convert to fraction form
    100,862.82/151,224.16 = 44,672.31/x
  3. Step 3: Cross multiply
    100,862.82x = 151,224.16 × 44,672.31
  4. Step 4: Simplify right side
    100,862.82x = 6,755,531,687.21
  5. Step 5: Solve for x
    x = 6,755,531,687.21/100,862.82
  6. Step 6: Final answer
    x = 66,977.43

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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.