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Finding the Fourth Proportional to 159,352.80, 239,158.80 and 154,168.80

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Solution

The fourth proportional to 159,352.80, 239,158.80 and 154,168.80 is: 231,378.58

Step by Step Solution

  1. Step 1: Write the proportion equation
    159,352.80 : 239,158.80 = 154,168.80 : x
  2. Step 2: Convert to fraction form
    159,352.80/239,158.80 = 154,168.80/x
  3. Step 3: Cross multiply
    159,352.80x = 239,158.80 × 154,168.80
  4. Step 4: Simplify right side
    159,352.80x = 36,870,825,205.44
  5. Step 5: Solve for x
    x = 36,870,825,205.44/159,352.80
  6. Step 6: Final answer
    x = 231,378.58

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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.