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Finding the Fourth Proportional to 110,562.80, 165,865.80 and 43,991.60

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Solution

The fourth proportional to 110,562.80, 165,865.80 and 43,991.60 is: 65,995.99

Step by Step Solution

  1. Step 1: Write the proportion equation
    110,562.80 : 165,865.80 = 43,991.60 : x
  2. Step 2: Convert to fraction form
    110,562.80/165,865.80 = 43,991.60/x
  3. Step 3: Cross multiply
    110,562.80x = 165,865.80 × 43,991.60
  4. Step 4: Simplify right side
    110,562.80x = 7,296,701,927.28
  5. Step 5: Solve for x
    x = 7,296,701,927.28/110,562.80
  6. Step 6: Final answer
    x = 65,995.99

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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.