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Finding the Fourth Proportional to 317,867.36, 476,334.48 and 159,878.48

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Solution

The fourth proportional to 317,867.36, 476,334.48 and 159,878.48 is: 239,583.05

Step by Step Solution

  1. Step 1: Write the proportion equation
    317,867.36 : 476,334.48 = 159,878.48 : x
  2. Step 2: Convert to fraction form
    317,867.36/476,334.48 = 159,878.48/x
  3. Step 3: Cross multiply
    317,867.36x = 476,334.48 × 159,878.48
  4. Step 4: Simplify right side
    317,867.36x = 76,155,632,633.99
  5. Step 5: Solve for x
    x = 76,155,632,633.99/317,867.36
  6. Step 6: Final answer
    x = 239,583.05

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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.