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Finding the Fourth Proportional to 263,219.99, 363,243.58 and 142,361.28

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Solution

The fourth proportional to 263,219.99, 363,243.58 and 142,361.28 is: 196,458.56

Step by Step Solution

  1. Step 1: Write the proportion equation
    263,219.99 : 363,243.58 = 142,361.28 : x
  2. Step 2: Convert to fraction form
    263,219.99/363,243.58 = 142,361.28/x
  3. Step 3: Cross multiply
    263,219.99x = 363,243.58 × 142,361.28
  4. Step 4: Simplify right side
    263,219.99x = 51,711,818,472.56
  5. Step 5: Solve for x
    x = 51,711,818,472.56/263,219.99
  6. Step 6: Final answer
    x = 196,458.56

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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.