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Finding the Fourth Proportional to 120,593.76, 166,413.72 and 66,877.62

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Solution

The fourth proportional to 120,593.76, 166,413.72 and 66,877.62 is: 92,287.97

Step by Step Solution

  1. Step 1: Write the proportion equation
    120,593.76 : 166,413.72 = 66,877.62 : x
  2. Step 2: Convert to fraction form
    120,593.76/166,413.72 = 66,877.62/x
  3. Step 3: Cross multiply
    120,593.76x = 166,413.72 × 66,877.62
  4. Step 4: Simplify right side
    120,593.76x = 11,129,353,528.95
  5. Step 5: Solve for x
    x = 11,129,353,528.95/120,593.76
  6. Step 6: Final answer
    x = 92,287.97

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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.