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Finding the Fourth Proportional to 171,608.70, 257,413.05 and 92,876.70

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Solution

The fourth proportional to 171,608.70, 257,413.05 and 92,876.70 is: 139,315.05

Step by Step Solution

  1. Step 1: Write the proportion equation
    171,608.70 : 257,413.05 = 92,876.70 : x
  2. Step 2: Convert to fraction form
    171,608.70/257,413.05 = 92,876.70/x
  3. Step 3: Cross multiply
    171,608.70x = 257,413.05 × 92,876.70
  4. Step 4: Simplify right side
    171,608.70x = 23,907,674,620.94
  5. Step 5: Solve for x
    x = 23,907,674,620.94/171,608.70
  6. Step 6: Final answer
    x = 139,315.05

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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.