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Finding the Fourth Proportional to 119,761.94, 165,267.95 and 66,046.94

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Solution

The fourth proportional to 119,761.94, 165,267.95 and 66,046.94 is: 91,142.83

Step by Step Solution

  1. Step 1: Write the proportion equation
    119,761.94 : 165,267.95 = 66,046.94 : x
  2. Step 2: Convert to fraction form
    119,761.94/165,267.95 = 66,046.94/x
  3. Step 3: Cross multiply
    119,761.94x = 165,267.95 × 66,046.94
  4. Step 4: Simplify right side
    119,761.94x = 10,915,442,770.39
  5. Step 5: Solve for x
    x = 10,915,442,770.39/119,761.94
  6. Step 6: Final answer
    x = 91,142.83

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Why These Related Problems?

These problems maintain the same ratio (1.38) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.