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Finding the Fourth Proportional to 110,391.76, 165,615.23 and 43,809.86

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Solution

The fourth proportional to 110,391.76, 165,615.23 and 43,809.86 is: 65,725.74

Step by Step Solution

  1. Step 1: Write the proportion equation
    110,391.76 : 165,615.23 = 43,809.86 : x
  2. Step 2: Convert to fraction form
    110,391.76/165,615.23 = 43,809.86/x
  3. Step 3: Cross multiply
    110,391.76x = 165,615.23 × 43,809.86
  4. Step 4: Simplify right side
    110,391.76x = 7,255,580,563.73
  5. Step 5: Solve for x
    x = 7,255,580,563.73/110,391.76
  6. Step 6: Final answer
    x = 65,725.74

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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.