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Finding the Fourth Proportional to 247,025.68, 340,912.74 and 139,605.64

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Solution

The fourth proportional to 247,025.68, 340,912.74 and 139,605.64 is: 192,665.56

Step by Step Solution

  1. Step 1: Write the proportion equation
    247,025.68 : 340,912.74 = 139,605.64 : x
  2. Step 2: Convert to fraction form
    247,025.68/340,912.74 = 139,605.64/x
  3. Step 3: Cross multiply
    247,025.68x = 340,912.74 × 139,605.64
  4. Step 4: Simplify right side
    247,025.68x = 47,593,341,251.85
  5. Step 5: Solve for x
    x = 47,593,341,251.85/247,025.68
  6. Step 6: Final answer
    x = 192,665.56

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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.