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Finding the Fourth Proportional to 110,286.99, 165,485.16 and 43,725.69

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Solution

The fourth proportional to 110,286.99, 165,485.16 and 43,725.69 is: 65,610.21

Step by Step Solution

  1. Step 1: Write the proportion equation
    110,286.99 : 165,485.16 = 43,725.69 : x
  2. Step 2: Convert to fraction form
    110,286.99/165,485.16 = 43,725.69/x
  3. Step 3: Cross multiply
    110,286.99x = 165,485.16 × 43,725.69
  4. Step 4: Simplify right side
    110,286.99x = 7,235,952,805.76
  5. Step 5: Solve for x
    x = 7,235,952,805.76/110,286.99
  6. Step 6: Final answer
    x = 65,610.21

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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.