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Finding the Fourth Proportional to 190,405.92, 285,633.18 and 63,991.92

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Solution

The fourth proportional to 190,405.92, 285,633.18 and 63,991.92 is: 95,996.05

Step by Step Solution

  1. Step 1: Write the proportion equation
    190,405.92 : 285,633.18 = 63,991.92 : x
  2. Step 2: Convert to fraction form
    190,405.92/285,633.18 = 63,991.92/x
  3. Step 3: Cross multiply
    190,405.92x = 285,633.18 × 63,991.92
  4. Step 4: Simplify right side
    190,405.92x = 18,278,215,603.91
  5. Step 5: Solve for x
    x = 18,278,215,603.91/190,405.92
  6. Step 6: Final answer
    x = 95,996.05

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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.