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Finding the Fourth Proportional to 79,408.72, 119,001.09 and 43,886.03

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Solution

The fourth proportional to 79,408.72, 119,001.09 and 43,886.03 is: 65,767.15

Step by Step Solution

  1. Step 1: Write the proportion equation
    79,408.72 : 119,001.09 = 43,886.03 : x
  2. Step 2: Convert to fraction form
    79,408.72/119,001.09 = 43,886.03/x
  3. Step 3: Cross multiply
    79,408.72x = 119,001.09 × 43,886.03
  4. Step 4: Simplify right side
    79,408.72x = 5,222,485,405.77
  5. Step 5: Solve for x
    x = 5,222,485,405.77/79,408.72
  6. Step 6: Final answer
    x = 65,767.15

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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.