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Finding the Fourth Proportional to 110,469.40, 165,747.30 and 40,355.80

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Solution

The fourth proportional to 110,469.40, 165,747.30 and 40,355.80 is: 60,549.48

Step by Step Solution

  1. Step 1: Write the proportion equation
    110,469.40 : 165,747.30 = 40,355.80 : x
  2. Step 2: Convert to fraction form
    110,469.40/165,747.30 = 40,355.80/x
  3. Step 3: Cross multiply
    110,469.40x = 165,747.30 × 40,355.80
  4. Step 4: Simplify right side
    110,469.40x = 6,688,864,889.34
  5. Step 5: Solve for x
    x = 6,688,864,889.34/110,469.40
  6. Step 6: Final answer
    x = 60,549.48

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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.