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Finding the Fourth Proportional to 119,893.98, 165,452.78 and 66,179.00

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Solution

The fourth proportional to 119,893.98, 165,452.78 and 66,179.00 is: 91,326.51

Step by Step Solution

  1. Step 1: Write the proportion equation
    119,893.98 : 165,452.78 = 66,179.00 : x
  2. Step 2: Convert to fraction form
    119,893.98/165,452.78 = 66,179.00/x
  3. Step 3: Cross multiply
    119,893.98x = 165,452.78 × 66,179.00
  4. Step 4: Simplify right side
    119,893.98x = 10,949,498,369.46
  5. Step 5: Solve for x
    x = 10,949,498,369.46/119,893.98
  6. Step 6: Final answer
    x = 91,326.51

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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.