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Finding the Fourth Proportional to 104,379.72, 156,523.05 and 33,289.08

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Solution

The fourth proportional to 104,379.72, 156,523.05 and 33,289.08 is: 49,918.78

Step by Step Solution

  1. Step 1: Write the proportion equation
    104,379.72 : 156,523.05 = 33,289.08 : x
  2. Step 2: Convert to fraction form
    104,379.72/156,523.05 = 33,289.08/x
  3. Step 3: Cross multiply
    104,379.72x = 156,523.05 × 33,289.08
  4. Step 4: Simplify right side
    104,379.72x = 5,210,508,333.29
  5. Step 5: Solve for x
    x = 5,210,508,333.29/104,379.72
  6. Step 6: Final answer
    x = 49,918.78

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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.