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Finding the Fourth Proportional to 159,059.58, 238,571.34 and 40,731.78

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Solution

The fourth proportional to 159,059.58, 238,571.34 and 40,731.78 is: 61,093.05

Step by Step Solution

  1. Step 1: Write the proportion equation
    159,059.58 : 238,571.34 = 40,731.78 : x
  2. Step 2: Convert to fraction form
    159,059.58/238,571.34 = 40,731.78/x
  3. Step 3: Cross multiply
    159,059.58x = 238,571.34 × 40,731.78
  4. Step 4: Simplify right side
    159,059.58x = 9,717,435,335.19
  5. Step 5: Solve for x
    x = 9,717,435,335.19/159,059.58
  6. Step 6: Final answer
    x = 61,093.05

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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.