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Finding the Fourth Proportional to 221,695.89, 332,538.17 and 61,771.11

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Solution

The fourth proportional to 221,695.89, 332,538.17 and 61,771.11 is: 92,655.09

Step by Step Solution

  1. Step 1: Write the proportion equation
    221,695.89 : 332,538.17 = 61,771.11 : x
  2. Step 2: Convert to fraction form
    221,695.89/332,538.17 = 61,771.11/x
  3. Step 3: Cross multiply
    221,695.89x = 332,538.17 × 61,771.11
  4. Step 4: Simplify right side
    221,695.89x = 20,541,251,569.41
  5. Step 5: Solve for x
    x = 20,541,251,569.41/221,695.89
  6. Step 6: Final answer
    x = 92,655.09

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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.