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Finding the Fourth Proportional to 142,220.88, 213,161.22 and 63,245.88

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Solution

The fourth proportional to 142,220.88, 213,161.22 and 63,245.88 is: 94,793.18

Step by Step Solution

  1. Step 1: Write the proportion equation
    142,220.88 : 213,161.22 = 63,245.88 : x
  2. Step 2: Convert to fraction form
    142,220.88/213,161.22 = 63,245.88/x
  3. Step 3: Cross multiply
    142,220.88x = 213,161.22 × 63,245.88
  4. Step 4: Simplify right side
    142,220.88x = 13,481,568,940.77
  5. Step 5: Solve for x
    x = 13,481,568,940.77/142,220.88
  6. Step 6: Final answer
    x = 94,793.18

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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.