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Finding the Fourth Proportional to 317,493.77, 476,007.36 and 159,563.21

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Solution

The fourth proportional to 317,493.77, 476,007.36 and 159,563.21 is: 239,227.56

Step by Step Solution

  1. Step 1: Write the proportion equation
    317,493.77 : 476,007.36 = 159,563.21 : x
  2. Step 2: Convert to fraction form
    317,493.77/476,007.36 = 159,563.21/x
  3. Step 3: Cross multiply
    317,493.77x = 476,007.36 × 159,563.21
  4. Step 4: Simplify right side
    317,493.77x = 75,953,259,965.19
  5. Step 5: Solve for x
    x = 75,953,259,965.19/317,493.77
  6. Step 6: Final answer
    x = 239,227.56

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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.