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Finding the Fourth Proportional to 220,134.20, 330,201.30 and 141,402.20

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Solution

The fourth proportional to 220,134.20, 330,201.30 and 141,402.20 is: 212,103.30

Step by Step Solution

  1. Step 1: Write the proportion equation
    220,134.20 : 330,201.30 = 141,402.20 : x
  2. Step 2: Convert to fraction form
    220,134.20/330,201.30 = 141,402.20/x
  3. Step 3: Cross multiply
    220,134.20x = 330,201.30 × 141,402.20
  4. Step 4: Simplify right side
    220,134.20x = 46,691,190,262.86
  5. Step 5: Solve for x
    x = 46,691,190,262.86/220,134.20
  6. Step 6: Final answer
    x = 212,103.30

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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.