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Finding the Fourth Proportional to 119,753.32, 165,257.40 and 66,043.32

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Solution

The fourth proportional to 119,753.32, 165,257.40 and 66,043.32 is: 91,138.58

Step by Step Solution

  1. Step 1: Write the proportion equation
    119,753.32 : 165,257.40 = 66,043.32 : x
  2. Step 2: Convert to fraction form
    119,753.32/165,257.40 = 66,043.32/x
  3. Step 3: Cross multiply
    119,753.32x = 165,257.40 × 66,043.32
  4. Step 4: Simplify right side
    119,753.32x = 10,914,147,350.57
  5. Step 5: Solve for x
    x = 10,914,147,350.57/119,753.32
  6. Step 6: Final answer
    x = 91,138.58

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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.