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Finding the Fourth Proportional to 72,694.63, 109,005.03 and 33,217.91

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Solution

The fourth proportional to 72,694.63, 109,005.03 and 33,217.91 is: 49,810.00

Step by Step Solution

  1. Step 1: Write the proportion equation
    72,694.63 : 109,005.03 = 33,217.91 : x
  2. Step 2: Convert to fraction form
    72,694.63/109,005.03 = 33,217.91/x
  3. Step 3: Cross multiply
    72,694.63x = 109,005.03 × 33,217.91
  4. Step 4: Simplify right side
    72,694.63x = 3,620,919,456.61
  5. Step 5: Solve for x
    x = 3,620,919,456.61/72,694.63
  6. Step 6: Final answer
    x = 49,810.00

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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.