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Finding the Fourth Proportional to 221,773.72, 332,655.80 and 61,845.40

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Solution

The fourth proportional to 221,773.72, 332,655.80 and 61,845.40 is: 92,766.77

Step by Step Solution

  1. Step 1: Write the proportion equation
    221,773.72 : 332,655.80 = 61,845.40 : x
  2. Step 2: Convert to fraction form
    221,773.72/332,655.80 = 61,845.40/x
  3. Step 3: Cross multiply
    221,773.72x = 332,655.80 × 61,845.40
  4. Step 4: Simplify right side
    221,773.72x = 20,573,231,013.32
  5. Step 5: Solve for x
    x = 20,573,231,013.32/221,773.72
  6. Step 6: Final answer
    x = 92,766.77

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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.