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Finding the Fourth Proportional to 190,203.81, 285,198.83 and 130,299.83

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Solution

The fourth proportional to 190,203.81, 285,198.83 and 130,299.83 is: 195,376.52

Step by Step Solution

  1. Step 1: Write the proportion equation
    190,203.81 : 285,198.83 = 130,299.83 : x
  2. Step 2: Convert to fraction form
    190,203.81/285,198.83 = 130,299.83/x
  3. Step 3: Cross multiply
    190,203.81x = 285,198.83 × 130,299.83
  4. Step 4: Simplify right side
    190,203.81x = 37,161,357,410.27
  5. Step 5: Solve for x
    x = 37,161,357,410.27/190,203.81
  6. Step 6: Final answer
    x = 195,376.52

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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.