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Finding the Fourth Proportional to 110,250.81, 165,168.12 and 65,137.56

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Solution

The fourth proportional to 110,250.81, 165,168.12 and 65,137.56 is: 97,583.39

Step by Step Solution

  1. Step 1: Write the proportion equation
    110,250.81 : 165,168.12 = 65,137.56 : x
  2. Step 2: Convert to fraction form
    110,250.81/165,168.12 = 65,137.56/x
  3. Step 3: Cross multiply
    110,250.81x = 165,168.12 × 65,137.56
  4. Step 4: Simplify right side
    110,250.81x = 10,758,647,587.98
  5. Step 5: Solve for x
    x = 10,758,647,587.98/110,250.81
  6. Step 6: Final answer
    x = 97,583.39

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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.