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Finding the Fourth Proportional to 220,981, 331,441.26 and 63,223.24

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Solution

The fourth proportional to 220,981, 331,441.26 and 63,223.24 is: 94,826.21

Step by Step Solution

  1. Step 1: Write the proportion equation
    220,981 : 331,441.26 = 63,223.24 : x
  2. Step 2: Convert to fraction form
    220,981/331,441.26 = 63,223.24/x
  3. Step 3: Cross multiply
    220,981x = 331,441.26 × 63,223.24
  4. Step 4: Simplify right side
    220,981x = 20,954,790,326.88
  5. Step 5: Solve for x
    x = 20,954,790,326.88/220,981
  6. Step 6: Final answer
    x = 94,826.21

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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.