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Finding the Fourth Proportional to 108,503.82, 162,791.37 and 68,476.46

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Solution

The fourth proportional to 108,503.82, 162,791.37 and 68,476.46 is: 102,737.17

Step by Step Solution

  1. Step 1: Write the proportion equation
    108,503.82 : 162,791.37 = 68,476.46 : x
  2. Step 2: Convert to fraction form
    108,503.82/162,791.37 = 68,476.46/x
  3. Step 3: Cross multiply
    108,503.82x = 162,791.37 × 68,476.46
  4. Step 4: Simplify right side
    108,503.82x = 11,147,375,922.19
  5. Step 5: Solve for x
    x = 11,147,375,922.19/108,503.82
  6. Step 6: Final answer
    x = 102,737.17

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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.