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Finding the Fourth Proportional to 110,245.05, 165,270.51 and 43,731.90

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Solution

The fourth proportional to 110,245.05, 165,270.51 and 43,731.90 is: 65,559.35

Step by Step Solution

  1. Step 1: Write the proportion equation
    110,245.05 : 165,270.51 = 43,731.90 : x
  2. Step 2: Convert to fraction form
    110,245.05/165,270.51 = 43,731.90/x
  3. Step 3: Cross multiply
    110,245.05x = 165,270.51 × 43,731.90
  4. Step 4: Simplify right side
    110,245.05x = 7,227,593,416.27
  5. Step 5: Solve for x
    x = 7,227,593,416.27/110,245.05
  6. Step 6: Final answer
    x = 65,559.35

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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.