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Finding the Fourth Proportional to 79,767.02, 119,704.80 and 33,020.30

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Solution

The fourth proportional to 79,767.02, 119,704.80 and 33,020.30 is: 49,552.92

Step by Step Solution

  1. Step 1: Write the proportion equation
    79,767.02 : 119,704.80 = 33,020.30 : x
  2. Step 2: Convert to fraction form
    79,767.02/119,704.80 = 33,020.30/x
  3. Step 3: Cross multiply
    79,767.02x = 119,704.80 × 33,020.30
  4. Step 4: Simplify right side
    79,767.02x = 3,952,688,407.44
  5. Step 5: Solve for x
    x = 3,952,688,407.44/79,767.02
  6. Step 6: Final answer
    x = 49,552.92

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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.