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Finding the Fourth Proportional to 317,865.36, 476,331.48 and 159,876.48

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Solution

The fourth proportional to 317,865.36, 476,331.48 and 159,876.48 is: 239,580.05

Step by Step Solution

  1. Step 1: Write the proportion equation
    317,865.36 : 476,331.48 = 159,876.48 : x
  2. Step 2: Convert to fraction form
    317,865.36/476,331.48 = 159,876.48/x
  3. Step 3: Cross multiply
    317,865.36x = 476,331.48 × 159,876.48
  4. Step 4: Simplify right side
    317,865.36x = 76,154,200,335.59
  5. Step 5: Solve for x
    x = 76,154,200,335.59/317,865.36
  6. Step 6: Final answer
    x = 239,580.05

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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.