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Finding the Fourth Proportional to 120,655.94, 166,525.11 and 66,958.25

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Solution

The fourth proportional to 120,655.94, 166,525.11 and 66,958.25 is: 92,413.43

Step by Step Solution

  1. Step 1: Write the proportion equation
    120,655.94 : 166,525.11 = 66,958.25 : x
  2. Step 2: Convert to fraction form
    120,655.94/166,525.11 = 66,958.25/x
  3. Step 3: Cross multiply
    120,655.94x = 166,525.11 × 66,958.25
  4. Step 4: Simplify right side
    120,655.94x = 11,150,229,114.03
  5. Step 5: Solve for x
    x = 11,150,229,114.03/120,655.94
  6. Step 6: Final answer
    x = 92,413.43

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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.