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Finding the Fourth Proportional to 66,498.40, 99,664.44 and 33,227.80

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Solution

The fourth proportional to 66,498.40, 99,664.44 and 33,227.80 is: 49,800.15

Step by Step Solution

  1. Step 1: Write the proportion equation
    66,498.40 : 99,664.44 = 33,227.80 : x
  2. Step 2: Convert to fraction form
    66,498.40/99,664.44 = 33,227.80/x
  3. Step 3: Cross multiply
    66,498.40x = 99,664.44 × 33,227.80
  4. Step 4: Simplify right side
    66,498.40x = 3,311,630,079.43
  5. Step 5: Solve for x
    x = 3,311,630,079.43/66,498.40
  6. Step 6: Final answer
    x = 49,800.15

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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.