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Finding the Fourth Proportional to 189,954.72, 284,790.51 and 63,520.20

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Solution

The fourth proportional to 189,954.72, 284,790.51 and 63,520.20 is: 95,232.96

Step by Step Solution

  1. Step 1: Write the proportion equation
    189,954.72 : 284,790.51 = 63,520.20 : x
  2. Step 2: Convert to fraction form
    189,954.72/284,790.51 = 63,520.20/x
  3. Step 3: Cross multiply
    189,954.72x = 284,790.51 × 63,520.20
  4. Step 4: Simplify right side
    189,954.72x = 18,089,950,153.30
  5. Step 5: Solve for x
    x = 18,089,950,153.30/189,954.72
  6. Step 6: Final answer
    x = 95,232.96

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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.