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Finding the Fourth Proportional to 220,890.90, 331,336.35 and 150,906.90

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Solution

The fourth proportional to 220,890.90, 331,336.35 and 150,906.90 is: 226,360.35

Step by Step Solution

  1. Step 1: Write the proportion equation
    220,890.90 : 331,336.35 = 150,906.90 : x
  2. Step 2: Convert to fraction form
    220,890.90/331,336.35 = 150,906.90/x
  3. Step 3: Cross multiply
    220,890.90x = 331,336.35 × 150,906.90
  4. Step 4: Simplify right side
    220,890.90x = 50,000,941,435.82
  5. Step 5: Solve for x
    x = 50,000,941,435.82/220,890.90
  6. Step 6: Final answer
    x = 226,360.35

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1.5x scale

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.