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Finding the Fourth Proportional to 108,649.31, 162,988.83 and 33,755.49

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Solution

The fourth proportional to 108,649.31, 162,988.83 and 33,755.49 is: 50,637.86

Step by Step Solution

  1. Step 1: Write the proportion equation
    108,649.31 : 162,988.83 = 33,755.49 : x
  2. Step 2: Convert to fraction form
    108,649.31/162,988.83 = 33,755.49/x
  3. Step 3: Cross multiply
    108,649.31x = 162,988.83 × 33,755.49
  4. Step 4: Simplify right side
    108,649.31x = 5,501,767,821.18
  5. Step 5: Solve for x
    x = 5,501,767,821.18/108,649.31
  6. Step 6: Final answer
    x = 50,637.86

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These problems maintain the same ratio (1.50) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.