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Finding the Fourth Proportional to 110,661.80, 165,971.10 and 36,789.80

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Solution

The fourth proportional to 110,661.80, 165,971.10 and 36,789.80 is: 55,177.52

Step by Step Solution

  1. Step 1: Write the proportion equation
    110,661.80 : 165,971.10 = 36,789.80 : x
  2. Step 2: Convert to fraction form
    110,661.80/165,971.10 = 36,789.80/x
  3. Step 3: Cross multiply
    110,661.80x = 165,971.10 × 36,789.80
  4. Step 4: Simplify right side
    110,661.80x = 6,106,043,574.78
  5. Step 5: Solve for x
    x = 6,106,043,574.78/110,661.80
  6. Step 6: Final answer
    x = 55,177.52

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Why These Related Problems?

These problems maintain the same ratio (1.50) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.