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Finding the Fourth Proportional to 91,247.87, 125,919.48 and 50,960.45

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Solution

The fourth proportional to 91,247.87, 125,919.48 and 50,960.45 is: 70,323.98

Step by Step Solution

  1. Step 1: Write the proportion equation
    91,247.87 : 125,919.48 = 50,960.45 : x
  2. Step 2: Convert to fraction form
    91,247.87/125,919.48 = 50,960.45/x
  3. Step 3: Cross multiply
    91,247.87x = 125,919.48 × 50,960.45
  4. Step 4: Simplify right side
    91,247.87x = 6,416,912,734.97
  5. Step 5: Solve for x
    x = 6,416,912,734.97/91,247.87
  6. Step 6: Final answer
    x = 70,323.98

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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.