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Finding the Fourth Proportional to 119,887.97, 165,433.60 and 66,169.52

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Solution

The fourth proportional to 119,887.97, 165,433.60 and 66,169.52 is: 91,307.43

Step by Step Solution

  1. Step 1: Write the proportion equation
    119,887.97 : 165,433.60 = 66,169.52 : x
  2. Step 2: Convert to fraction form
    119,887.97/165,433.60 = 66,169.52/x
  3. Step 3: Cross multiply
    119,887.97x = 165,433.60 × 66,169.52
  4. Step 4: Simplify right side
    119,887.97x = 10,946,661,903.87
  5. Step 5: Solve for x
    x = 10,946,661,903.87/119,887.97
  6. Step 6: Final answer
    x = 91,307.43

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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.