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Finding the Fourth Proportional to 120,801.97, 166,712.30 and 67,087.23

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Solution

The fourth proportional to 120,801.97, 166,712.30 and 67,087.23 is: 92,583.48

Step by Step Solution

  1. Step 1: Write the proportion equation
    120,801.97 : 166,712.30 = 67,087.23 : x
  2. Step 2: Convert to fraction form
    120,801.97/166,712.30 = 67,087.23/x
  3. Step 3: Cross multiply
    120,801.97x = 166,712.30 × 67,087.23
  4. Step 4: Simplify right side
    120,801.97x = 11,184,266,413.93
  5. Step 5: Solve for x
    x = 11,184,266,413.93/120,801.97
  6. Step 6: Final answer
    x = 92,583.48

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1.5x scale

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.