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Finding the Fourth Proportional to 79,065.56, 118,406.36 and 43,472.54

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Solution

The fourth proportional to 79,065.56, 118,406.36 and 43,472.54 is: 65,103.25

Step by Step Solution

  1. Step 1: Write the proportion equation
    79,065.56 : 118,406.36 = 43,472.54 : x
  2. Step 2: Convert to fraction form
    79,065.56/118,406.36 = 43,472.54/x
  3. Step 3: Cross multiply
    79,065.56x = 118,406.36 × 43,472.54
  4. Step 4: Simplify right side
    79,065.56x = 5,147,425,221.35
  5. Step 5: Solve for x
    x = 5,147,425,221.35/79,065.56
  6. Step 6: Final answer
    x = 65,103.25

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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.