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Finding the Fourth Proportional to 190,321.76, 285,487.26 and 63,963.84

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Solution

The fourth proportional to 190,321.76, 285,487.26 and 63,963.84 is: 95,947.31

Step by Step Solution

  1. Step 1: Write the proportion equation
    190,321.76 : 285,487.26 = 63,963.84 : x
  2. Step 2: Convert to fraction form
    190,321.76/285,487.26 = 63,963.84/x
  3. Step 3: Cross multiply
    190,321.76x = 285,487.26 × 63,963.84
  4. Step 4: Simplify right side
    190,321.76x = 18,260,861,420.68
  5. Step 5: Solve for x
    x = 18,260,861,420.68/190,321.76
  6. Step 6: Final answer
    x = 95,947.31

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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.