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Finding the Fourth Proportional to 90,492.54, 124,879.56 and 50,212.44

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Solution

The fourth proportional to 90,492.54, 124,879.56 and 50,212.44 is: 69,293.09

Step by Step Solution

  1. Step 1: Write the proportion equation
    90,492.54 : 124,879.56 = 50,212.44 : x
  2. Step 2: Convert to fraction form
    90,492.54/124,879.56 = 50,212.44/x
  3. Step 3: Cross multiply
    90,492.54x = 124,879.56 × 50,212.44
  4. Step 4: Simplify right side
    90,492.54x = 6,270,507,413.73
  5. Step 5: Solve for x
    x = 6,270,507,413.73/90,492.54
  6. Step 6: Final answer
    x = 69,293.09

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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.