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Finding the Fourth Proportional to 73,900.33, 110,852.88 and 28,919.92

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Solution

The fourth proportional to 73,900.33, 110,852.88 and 28,919.92 is: 43,380.81

Step by Step Solution

  1. Step 1: Write the proportion equation
    73,900.33 : 110,852.88 = 28,919.92 : x
  2. Step 2: Convert to fraction form
    73,900.33/110,852.88 = 28,919.92/x
  3. Step 3: Cross multiply
    73,900.33x = 110,852.88 × 28,919.92
  4. Step 4: Simplify right side
    73,900.33x = 3,205,856,421.37
  5. Step 5: Solve for x
    x = 3,205,856,421.37/73,900.33
  6. Step 6: Final answer
    x = 43,380.81

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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.