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Finding the Fourth Proportional to 78,163.92, 117,246.24 and 24,861.60

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Solution

The fourth proportional to 78,163.92, 117,246.24 and 24,861.60 is: 37,292.51

Step by Step Solution

  1. Step 1: Write the proportion equation
    78,163.92 : 117,246.24 = 24,861.60 : x
  2. Step 2: Convert to fraction form
    78,163.92/117,246.24 = 24,861.60/x
  3. Step 3: Cross multiply
    78,163.92x = 117,246.24 × 24,861.60
  4. Step 4: Simplify right side
    78,163.92x = 2,914,929,120.38
  5. Step 5: Solve for x
    x = 2,914,929,120.38/78,163.92
  6. Step 6: Final answer
    x = 37,292.51

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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.