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Finding the Fourth Proportional to 66,089.93, 91,201.41 and 35,874.09

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Solution

The fourth proportional to 66,089.93, 91,201.41 and 35,874.09 is: 49,504.79

Step by Step Solution

  1. Step 1: Write the proportion equation
    66,089.93 : 91,201.41 = 35,874.09 : x
  2. Step 2: Convert to fraction form
    66,089.93/91,201.41 = 35,874.09/x
  3. Step 3: Cross multiply
    66,089.93x = 91,201.41 × 35,874.09
  4. Step 4: Simplify right side
    66,089.93x = 3,271,767,590.47
  5. Step 5: Solve for x
    x = 3,271,767,590.47/66,089.93
  6. Step 6: Final answer
    x = 49,504.79

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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.