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Finding the Fourth Proportional to 110,847.42, 166,271.13 and 66,418.52

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Solution

The fourth proportional to 110,847.42, 166,271.13 and 66,418.52 is: 99,627.77

Step by Step Solution

  1. Step 1: Write the proportion equation
    110,847.42 : 166,271.13 = 66,418.52 : x
  2. Step 2: Convert to fraction form
    110,847.42/166,271.13 = 66,418.52/x
  3. Step 3: Cross multiply
    110,847.42x = 166,271.13 × 66,418.52
  4. Step 4: Simplify right side
    110,847.42x = 11,043,481,541.97
  5. Step 5: Solve for x
    x = 11,043,481,541.97/110,847.42
  6. Step 6: Final answer
    x = 99,627.77

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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.