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Finding the Fourth Proportional to 190,626.70, 285,842.41 and 100,717.68

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Solution

The fourth proportional to 190,626.70, 285,842.41 and 100,717.68 is: 151,024.93

Step by Step Solution

  1. Step 1: Write the proportion equation
    190,626.70 : 285,842.41 = 100,717.68 : x
  2. Step 2: Convert to fraction form
    190,626.70/285,842.41 = 100,717.68/x
  3. Step 3: Cross multiply
    190,626.70x = 285,842.41 × 100,717.68
  4. Step 4: Simplify right side
    190,626.70x = 28,789,384,380.81
  5. Step 5: Solve for x
    x = 28,789,384,380.81/190,626.70
  6. Step 6: Final answer
    x = 151,024.93

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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.