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Finding the Fourth Proportional to 190,141.56, 285,190.74 and 49,911.12

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Solution

The fourth proportional to 190,141.56, 285,190.74 and 49,911.12 is: 74,861.01

Step by Step Solution

  1. Step 1: Write the proportion equation
    190,141.56 : 285,190.74 = 49,911.12 : x
  2. Step 2: Convert to fraction form
    190,141.56/285,190.74 = 49,911.12/x
  3. Step 3: Cross multiply
    190,141.56x = 285,190.74 × 49,911.12
  4. Step 4: Simplify right side
    190,141.56x = 14,234,189,247.03
  5. Step 5: Solve for x
    x = 14,234,189,247.03/190,141.56
  6. Step 6: Final answer
    x = 74,861.01

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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.