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Finding the Fourth Proportional to 159,451.20, 239,695.20 and 113,025.60

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Solution

The fourth proportional to 159,451.20, 239,695.20 and 113,025.60 is: 169,905.86

Step by Step Solution

  1. Step 1: Write the proportion equation
    159,451.20 : 239,695.20 = 113,025.60 : x
  2. Step 2: Convert to fraction form
    159,451.20/239,695.20 = 113,025.60/x
  3. Step 3: Cross multiply
    159,451.20x = 239,695.20 × 113,025.60
  4. Step 4: Simplify right side
    159,451.20x = 27,091,693,797.12
  5. Step 5: Solve for x
    x = 27,091,693,797.12/159,451.20
  6. Step 6: Final answer
    x = 169,905.86

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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.