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Finding the Fourth Proportional to 113,418.20, 170,200.20 and 66,033.20

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Solution

The fourth proportional to 113,418.20, 170,200.20 and 66,033.20 is: 99,092.24

Step by Step Solution

  1. Step 1: Write the proportion equation
    113,418.20 : 170,200.20 = 66,033.20 : x
  2. Step 2: Convert to fraction form
    113,418.20/170,200.20 = 66,033.20/x
  3. Step 3: Cross multiply
    113,418.20x = 170,200.20 × 66,033.20
  4. Step 4: Simplify right side
    113,418.20x = 11,238,863,846.64
  5. Step 5: Solve for x
    x = 11,238,863,846.64/113,418.20
  6. Step 6: Final answer
    x = 99,092.24

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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.