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Finding the Fourth Proportional to 222,554.88, 306,958.20 and 154,571.94

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Solution

The fourth proportional to 222,554.88, 306,958.20 and 154,571.94 is: 213,192.92

Step by Step Solution

  1. Step 1: Write the proportion equation
    222,554.88 : 306,958.20 = 154,571.94 : x
  2. Step 2: Convert to fraction form
    222,554.88/306,958.20 = 154,571.94/x
  3. Step 3: Cross multiply
    222,554.88x = 306,958.20 × 154,571.94
  4. Step 4: Simplify right side
    222,554.88x = 47,447,124,472.91
  5. Step 5: Solve for x
    x = 47,447,124,472.91/222,554.88
  6. Step 6: Final answer
    x = 213,192.92

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Why These Related Problems?

These problems maintain the same ratio (1.38) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.