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Finding the Fourth Proportional to 85,413.45, 117,861.60 and 49,596.45

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Solution

The fourth proportional to 85,413.45, 117,861.60 and 49,596.45 is: 68,437.90

Step by Step Solution

  1. Step 1: Write the proportion equation
    85,413.45 : 117,861.60 = 49,596.45 : x
  2. Step 2: Convert to fraction form
    85,413.45/117,861.60 = 49,596.45/x
  3. Step 3: Cross multiply
    85,413.45x = 117,861.60 × 49,596.45
  4. Step 4: Simplify right side
    85,413.45x = 5,845,516,951.32
  5. Step 5: Solve for x
    x = 5,845,516,951.32/85,413.45
  6. Step 6: Final answer
    x = 68,437.90

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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.