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Finding the Fourth Proportional to 110,626.49, 165,939.84 and 47,405.59

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Solution

The fourth proportional to 110,626.49, 165,939.84 and 47,405.59 is: 71,108.42

Step by Step Solution

  1. Step 1: Write the proportion equation
    110,626.49 : 165,939.84 = 47,405.59 : x
  2. Step 2: Convert to fraction form
    110,626.49/165,939.84 = 47,405.59/x
  3. Step 3: Cross multiply
    110,626.49x = 165,939.84 × 47,405.59
  4. Step 4: Simplify right side
    110,626.49x = 7,866,475,604.86
  5. Step 5: Solve for x
    x = 7,866,475,604.86/110,626.49
  6. Step 6: Final answer
    x = 71,108.42

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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.