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Finding the Fourth Proportional to 66,089.33, 91,200.81 and 35,874.01

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Solution

The fourth proportional to 66,089.33, 91,200.81 and 35,874.01 is: 49,504.79

Step by Step Solution

  1. Step 1: Write the proportion equation
    66,089.33 : 91,200.81 = 35,874.01 : x
  2. Step 2: Convert to fraction form
    66,089.33/91,200.81 = 35,874.01/x
  3. Step 3: Cross multiply
    66,089.33x = 91,200.81 × 35,874.01
  4. Step 4: Simplify right side
    66,089.33x = 3,271,738,541.95
  5. Step 5: Solve for x
    x = 3,271,738,541.95/66,089.33
  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.