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Finding the Fourth Proportional to 108,661.84, 163,003.13 and 33,761.86

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Solution

The fourth proportional to 108,661.84, 163,003.13 and 33,761.86 is: 50,646.02

Step by Step Solution

  1. Step 1: Write the proportion equation
    108,661.84 : 163,003.13 = 33,761.86 : x
  2. Step 2: Convert to fraction form
    108,661.84/163,003.13 = 33,761.86/x
  3. Step 3: Cross multiply
    108,661.84x = 163,003.13 × 33,761.86
  4. Step 4: Simplify right side
    108,661.84x = 5,503,289,511.71
  5. Step 5: Solve for x
    x = 5,503,289,511.71/108,661.84
  6. Step 6: Final answer
    x = 50,646.02

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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.