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Finding the Fourth Proportional to 61,333.21, 91,905.93 and 41,268.40

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Solution

The fourth proportional to 61,333.21, 91,905.93 and 41,268.40 is: 61,839.42

Step by Step Solution

  1. Step 1: Write the proportion equation
    61,333.21 : 91,905.93 = 41,268.40 : x
  2. Step 2: Convert to fraction form
    61,333.21/91,905.93 = 41,268.40/x
  3. Step 3: Cross multiply
    61,333.21x = 91,905.93 × 41,268.40
  4. Step 4: Simplify right side
    61,333.21x = 3,792,810,222.08
  5. Step 5: Solve for x
    x = 3,792,810,222.08/61,333.21
  6. Step 6: Final answer
    x = 61,839.42

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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.