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Finding the Fourth Proportional to 110,212.60, 165,100.20 and 60,219.40

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Solution

The fourth proportional to 110,212.60, 165,100.20 and 60,219.40 is: 90,209.60

Step by Step Solution

  1. Step 1: Write the proportion equation
    110,212.60 : 165,100.20 = 60,219.40 : x
  2. Step 2: Convert to fraction form
    110,212.60/165,100.20 = 60,219.40/x
  3. Step 3: Cross multiply
    110,212.60x = 165,100.20 × 60,219.40
  4. Step 4: Simplify right side
    110,212.60x = 9,942,234,983.88
  5. Step 5: Solve for x
    x = 9,942,234,983.88/110,212.60
  6. Step 6: Final answer
    x = 90,209.60

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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.