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Finding the Fourth Proportional to 220,200.70, 330,355.05 and 101,847.10

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Solution

The fourth proportional to 220,200.70, 330,355.05 and 101,847.10 is: 152,795.63

Step by Step Solution

  1. Step 1: Write the proportion equation
    220,200.70 : 330,355.05 = 101,847.10 : x
  2. Step 2: Convert to fraction form
    220,200.70/330,355.05 = 101,847.10/x
  3. Step 3: Cross multiply
    220,200.70x = 330,355.05 × 101,847.10
  4. Step 4: Simplify right side
    220,200.70x = 33,645,703,812.86
  5. Step 5: Solve for x
    x = 33,645,703,812.86/220,200.70
  6. Step 6: Final answer
    x = 152,795.63

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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.