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Finding the Fourth Proportional to 311,992.14, 430,550.37 and 168,753.18

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Solution

The fourth proportional to 311,992.14, 430,550.37 and 168,753.18 is: 232,880.05

Step by Step Solution

  1. Step 1: Write the proportion equation
    311,992.14 : 430,550.37 = 168,753.18 : x
  2. Step 2: Convert to fraction form
    311,992.14/430,550.37 = 168,753.18/x
  3. Step 3: Cross multiply
    311,992.14x = 430,550.37 × 168,753.18
  4. Step 4: Simplify right side
    311,992.14x = 72,656,744,087.68
  5. Step 5: Solve for x
    x = 72,656,744,087.68/311,992.14
  6. Step 6: Final answer
    x = 232,880.05

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1.5x scale

Why These Related Problems?

These problems maintain the same ratio (1.38) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.