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Finding the Fourth Proportional to 110,591.80, 165,855.30 and 51,413.20

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Solution

The fourth proportional to 110,591.80, 165,855.30 and 51,413.20 is: 77,104.74

Step by Step Solution

  1. Step 1: Write the proportion equation
    110,591.80 : 165,855.30 = 51,413.20 : x
  2. Step 2: Convert to fraction form
    110,591.80/165,855.30 = 51,413.20/x
  3. Step 3: Cross multiply
    110,591.80x = 165,855.30 × 51,413.20
  4. Step 4: Simplify right side
    110,591.80x = 8,527,151,709.96
  5. Step 5: Solve for x
    x = 8,527,151,709.96/110,591.80
  6. Step 6: Final answer
    x = 77,104.74

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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.