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Finding the Fourth Proportional to 159,629.54, 239,481.88 and 47,310.68

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Solution

The fourth proportional to 159,629.54, 239,481.88 and 47,310.68 is: 70,977.16

Step by Step Solution

  1. Step 1: Write the proportion equation
    159,629.54 : 239,481.88 = 47,310.68 : x
  2. Step 2: Convert to fraction form
    159,629.54/239,481.88 = 47,310.68/x
  3. Step 3: Cross multiply
    159,629.54x = 239,481.88 × 47,310.68
  4. Step 4: Simplify right side
    159,629.54x = 11,330,051,070.91
  5. Step 5: Solve for x
    x = 11,330,051,070.91/159,629.54
  6. Step 6: Final answer
    x = 70,977.16

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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.