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Finding the Fourth Proportional to 108,191.28, 162,305.43 and 33,309.93

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Solution

The fourth proportional to 108,191.28, 162,305.43 and 33,309.93 is: 49,970.59

Step by Step Solution

  1. Step 1: Write the proportion equation
    108,191.28 : 162,305.43 = 33,309.93 : x
  2. Step 2: Convert to fraction form
    108,191.28/162,305.43 = 33,309.93/x
  3. Step 3: Cross multiply
    108,191.28x = 162,305.43 × 33,309.93
  4. Step 4: Simplify right side
    108,191.28x = 5,406,382,511.92
  5. Step 5: Solve for x
    x = 5,406,382,511.92/108,191.28
  6. Step 6: Final answer
    x = 49,970.59

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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.