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Finding the Fourth Proportional to 58,855.74, 81,222.93 and 33,361.80

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Solution

The fourth proportional to 58,855.74, 81,222.93 and 33,361.80 is: 46,040.42

Step by Step Solution

  1. Step 1: Write the proportion equation
    58,855.74 : 81,222.93 = 33,361.80 : x
  2. Step 2: Convert to fraction form
    58,855.74/81,222.93 = 33,361.80/x
  3. Step 3: Cross multiply
    58,855.74x = 81,222.93 × 33,361.80
  4. Step 4: Simplify right side
    58,855.74x = 2,709,743,146.07
  5. Step 5: Solve for x
    x = 2,709,743,146.07/58,855.74
  6. Step 6: Final answer
    x = 46,040.42

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Why These Related Problems?

These problems maintain the same ratio (1.38) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.