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Finding the Fourth Proportional to 72,448.52, 108,596.46 and 41,216.36

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Solution

The fourth proportional to 72,448.52, 108,596.46 and 41,216.36 is: 61,781.12

Step by Step Solution

  1. Step 1: Write the proportion equation
    72,448.52 : 108,596.46 = 41,216.36 : x
  2. Step 2: Convert to fraction form
    72,448.52/108,596.46 = 41,216.36/x
  3. Step 3: Cross multiply
    72,448.52x = 108,596.46 × 41,216.36
  4. Step 4: Simplify right side
    72,448.52x = 4,475,950,790.09
  5. Step 5: Solve for x
    x = 4,475,950,790.09/72,448.52
  6. Step 6: Final answer
    x = 61,781.12

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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.