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Finding the Fourth Proportional to 110,281.70, 165,422.55 and 40,163.30

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Solution

The fourth proportional to 110,281.70, 165,422.55 and 40,163.30 is: 60,244.95

Step by Step Solution

  1. Step 1: Write the proportion equation
    110,281.70 : 165,422.55 = 40,163.30 : x
  2. Step 2: Convert to fraction form
    110,281.70/165,422.55 = 40,163.30/x
  3. Step 3: Cross multiply
    110,281.70x = 165,422.55 × 40,163.30
  4. Step 4: Simplify right side
    110,281.70x = 6,643,915,502.42
  5. Step 5: Solve for x
    x = 6,643,915,502.42/110,281.70
  6. Step 6: Final answer
    x = 60,244.95

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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.