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Finding the Fourth Proportional to 219,471.12, 329,226.12 and 61,700.94

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Solution

The fourth proportional to 219,471.12, 329,226.12 and 61,700.94 is: 92,556.88

Step by Step Solution

  1. Step 1: Write the proportion equation
    219,471.12 : 329,226.12 = 61,700.94 : x
  2. Step 2: Convert to fraction form
    219,471.12/329,226.12 = 61,700.94/x
  3. Step 3: Cross multiply
    219,471.12x = 329,226.12 × 61,700.94
  4. Step 4: Simplify right side
    219,471.12x = 20,313,561,076.55
  5. Step 5: Solve for x
    x = 20,313,561,076.55/219,471.12
  6. Step 6: Final answer
    x = 92,556.88

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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.