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Finding the Fourth Proportional to 72,672.88, 109,043.88 and 33,226.96

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Solution

The fourth proportional to 72,672.88, 109,043.88 and 33,226.96 is: 49,856.24

Step by Step Solution

  1. Step 1: Write the proportion equation
    72,672.88 : 109,043.88 = 33,226.96 : x
  2. Step 2: Convert to fraction form
    72,672.88/109,043.88 = 33,226.96/x
  3. Step 3: Cross multiply
    72,672.88x = 109,043.88 × 33,226.96
  4. Step 4: Simplify right side
    72,672.88x = 3,623,196,639.00
  5. Step 5: Solve for x
    x = 3,623,196,639.00/72,672.88
  6. Step 6: Final answer
    x = 49,856.24

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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.