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Finding the Fourth Proportional to 88,705.92, 122,413.32 and 48,419.94

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Solution

The fourth proportional to 88,705.92, 122,413.32 and 48,419.94 is: 66,819.05

Step by Step Solution

  1. Step 1: Write the proportion equation
    88,705.92 : 122,413.32 = 48,419.94 : x
  2. Step 2: Convert to fraction form
    88,705.92/122,413.32 = 48,419.94/x
  3. Step 3: Cross multiply
    88,705.92x = 122,413.32 × 48,419.94
  4. Step 4: Simplify right side
    88,705.92x = 5,927,245,609.60
  5. Step 5: Solve for x
    x = 5,927,245,609.60/88,705.92
  6. Step 6: Final answer
    x = 66,819.05

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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.