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Finding the Fourth Proportional to 74,661.77, 111,918.12 and 41,396.69

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Solution

The fourth proportional to 74,661.77, 111,918.12 and 41,396.69 is: 62,053.71

Step by Step Solution

  1. Step 1: Write the proportion equation
    74,661.77 : 111,918.12 = 41,396.69 : x
  2. Step 2: Convert to fraction form
    74,661.77/111,918.12 = 41,396.69/x
  3. Step 3: Cross multiply
    74,661.77x = 111,918.12 × 41,396.69
  4. Step 4: Simplify right side
    74,661.77x = 4,633,039,159.43
  5. Step 5: Solve for x
    x = 4,633,039,159.43/74,661.77
  6. Step 6: Final answer
    x = 62,053.71

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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.