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Finding the Fourth Proportional to 220,872.30, 331,351.65 and 94,512.30

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Solution

The fourth proportional to 220,872.30, 331,351.65 and 94,512.30 is: 141,786.94

Step by Step Solution

  1. Step 1: Write the proportion equation
    220,872.30 : 331,351.65 = 94,512.30 : x
  2. Step 2: Convert to fraction form
    220,872.30/331,351.65 = 94,512.30/x
  3. Step 3: Cross multiply
    220,872.30x = 331,351.65 × 94,512.30
  4. Step 4: Simplify right side
    220,872.30x = 31,316,806,550.30
  5. Step 5: Solve for x
    x = 31,316,806,550.30/220,872.30
  6. Step 6: Final answer
    x = 141,786.94

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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.