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Finding the Fourth Proportional to 119,871.44, 165,422.44 and 66,156.48

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Solution

The fourth proportional to 119,871.44, 165,422.44 and 66,156.48 is: 91,295.86

Step by Step Solution

  1. Step 1: Write the proportion equation
    119,871.44 : 165,422.44 = 66,156.48 : x
  2. Step 2: Convert to fraction form
    119,871.44/165,422.44 = 66,156.48/x
  3. Step 3: Cross multiply
    119,871.44x = 165,422.44 × 66,156.48
  4. Step 4: Simplify right side
    119,871.44x = 10,943,766,343.41
  5. Step 5: Solve for x
    x = 10,943,766,343.41/119,871.44
  6. Step 6: Final answer
    x = 91,295.86

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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.