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Finding the Fourth Proportional to 74,641.37, 111,879.90 and 32,472.36

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Solution

The fourth proportional to 74,641.37, 111,879.90 and 32,472.36 is: 48,672.80

Step by Step Solution

  1. Step 1: Write the proportion equation
    74,641.37 : 111,879.90 = 32,472.36 : x
  2. Step 2: Convert to fraction form
    74,641.37/111,879.90 = 32,472.36/x
  3. Step 3: Cross multiply
    74,641.37x = 111,879.90 × 32,472.36
  4. Step 4: Simplify right side
    74,641.37x = 3,633,004,389.56
  5. Step 5: Solve for x
    x = 3,633,004,389.56/74,641.37
  6. Step 6: Final answer
    x = 48,672.80

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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.