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Finding the Fourth Proportional to 118,647.20, 177,934.11 and 34,413.56

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Solution

The fourth proportional to 118,647.20, 177,934.11 and 34,413.56 is: 51,609.69

Step by Step Solution

  1. Step 1: Write the proportion equation
    118,647.20 : 177,934.11 = 34,413.56 : x
  2. Step 2: Convert to fraction form
    118,647.20/177,934.11 = 34,413.56/x
  3. Step 3: Cross multiply
    118,647.20x = 177,934.11 × 34,413.56
  4. Step 4: Simplify right side
    118,647.20x = 6,123,345,280.86
  5. Step 5: Solve for x
    x = 6,123,345,280.86/118,647.20
  6. Step 6: Final answer
    x = 51,609.69

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1.5x scale

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.