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Finding the Fourth Proportional to 73,929.20, 110,872.20 and 26,538.80

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Solution

The fourth proportional to 73,929.20, 110,872.20 and 26,538.80 is: 39,800.45

Step by Step Solution

  1. Step 1: Write the proportion equation
    73,929.20 : 110,872.20 = 26,538.80 : x
  2. Step 2: Convert to fraction form
    73,929.20/110,872.20 = 26,538.80/x
  3. Step 3: Cross multiply
    73,929.20x = 110,872.20 × 26,538.80
  4. Step 4: Simplify right side
    73,929.20x = 2,942,415,141.36
  5. Step 5: Solve for x
    x = 2,942,415,141.36/73,929.20
  6. Step 6: Final answer
    x = 39,800.45

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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.