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Finding the Fourth Proportional to 108,509.36, 162,789.28 and 33,625.53

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Solution

The fourth proportional to 108,509.36, 162,789.28 and 33,625.53 is: 50,446.12

Step by Step Solution

  1. Step 1: Write the proportion equation
    108,509.36 : 162,789.28 = 33,625.53 : x
  2. Step 2: Convert to fraction form
    108,509.36/162,789.28 = 33,625.53/x
  3. Step 3: Cross multiply
    108,509.36x = 162,789.28 × 33,625.53
  4. Step 4: Simplify right side
    108,509.36x = 5,473,875,734.25
  5. Step 5: Solve for x
    x = 5,473,875,734.25/108,509.36
  6. Step 6: Final answer
    x = 50,446.12

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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.