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Finding the Fourth Proportional to 299,198.69, 412,892.24 and 170,137.18

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Solution

The fourth proportional to 299,198.69, 412,892.24 and 170,137.18 is: 234,788.19

Step by Step Solution

  1. Step 1: Write the proportion equation
    299,198.69 : 412,892.24 = 170,137.18 : x
  2. Step 2: Convert to fraction form
    299,198.69/412,892.24 = 170,137.18/x
  3. Step 3: Cross multiply
    299,198.69x = 412,892.24 × 170,137.18
  4. Step 4: Simplify right side
    299,198.69x = 70,248,318,700.39
  5. Step 5: Solve for x
    x = 70,248,318,700.39/299,198.69
  6. Step 6: Final answer
    x = 234,788.19

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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.