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Finding the Fourth Proportional to 222,709.20, 334,063.80 and 172,942.80

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Solution

The fourth proportional to 222,709.20, 334,063.80 and 172,942.80 is: 259,414.20

Step by Step Solution

  1. Step 1: Write the proportion equation
    222,709.20 : 334,063.80 = 172,942.80 : x
  2. Step 2: Convert to fraction form
    222,709.20/334,063.80 = 172,942.80/x
  3. Step 3: Cross multiply
    222,709.20x = 334,063.80 × 172,942.80
  4. Step 4: Simplify right side
    222,709.20x = 57,773,928,950.64
  5. Step 5: Solve for x
    x = 57,773,928,950.64/222,709.20
  6. Step 6: Final answer
    x = 259,414.20

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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.