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Finding the Fourth Proportional to 119,958.98, 165,542.33 and 66,244.43

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Solution

The fourth proportional to 119,958.98, 165,542.33 and 66,244.43 is: 91,416.74

Step by Step Solution

  1. Step 1: Write the proportion equation
    119,958.98 : 165,542.33 = 66,244.43 : x
  2. Step 2: Convert to fraction form
    119,958.98/165,542.33 = 66,244.43/x
  3. Step 3: Cross multiply
    119,958.98x = 165,542.33 × 66,244.43
  4. Step 4: Simplify right side
    119,958.98x = 10,966,257,871.19
  5. Step 5: Solve for x
    x = 10,966,257,871.19/119,958.98
  6. Step 6: Final answer
    x = 91,416.74

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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.