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Finding the Fourth Proportional to 72,822.44, 109,093.74 and 44,660.40

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Solution

The fourth proportional to 72,822.44, 109,093.74 and 44,660.40 is: 66,904.78

Step by Step Solution

  1. Step 1: Write the proportion equation
    72,822.44 : 109,093.74 = 44,660.40 : x
  2. Step 2: Convert to fraction form
    72,822.44/109,093.74 = 44,660.40/x
  3. Step 3: Cross multiply
    72,822.44x = 109,093.74 × 44,660.40
  4. Step 4: Simplify right side
    72,822.44x = 4,872,169,489.32
  5. Step 5: Solve for x
    x = 4,872,169,489.32/72,822.44
  6. Step 6: Final answer
    x = 66,904.78

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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.