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Finding the Fourth Proportional to 72,844.44, 109,285.44 and 39,555.96

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Solution

The fourth proportional to 72,844.44, 109,285.44 and 39,555.96 is: 59,344.14

Step by Step Solution

  1. Step 1: Write the proportion equation
    72,844.44 : 109,285.44 = 39,555.96 : x
  2. Step 2: Convert to fraction form
    72,844.44/109,285.44 = 39,555.96/x
  3. Step 3: Cross multiply
    72,844.44x = 109,285.44 × 39,555.96
  4. Step 4: Simplify right side
    72,844.44x = 4,322,890,493.22
  5. Step 5: Solve for x
    x = 4,322,890,493.22/72,844.44
  6. Step 6: Final answer
    x = 59,344.14

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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.