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Finding the Fourth Proportional to 53,661.65, 80,509.49 and 41,855.90

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Solution

The fourth proportional to 53,661.65, 80,509.49 and 41,855.90 is: 62,797.12

Step by Step Solution

  1. Step 1: Write the proportion equation
    53,661.65 : 80,509.49 = 41,855.90 : x
  2. Step 2: Convert to fraction form
    53,661.65/80,509.49 = 41,855.90/x
  3. Step 3: Cross multiply
    53,661.65x = 80,509.49 × 41,855.90
  4. Step 4: Simplify right side
    53,661.65x = 3,369,796,550.66
  5. Step 5: Solve for x
    x = 3,369,796,550.66/53,661.65
  6. Step 6: Final answer
    x = 62,797.12

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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.