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Finding the Fourth Proportional to 159,694.37, 239,043.31 and 117,621.96

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Solution

The fourth proportional to 159,694.37, 239,043.31 and 117,621.96 is: 176,065.96

Step by Step Solution

  1. Step 1: Write the proportion equation
    159,694.37 : 239,043.31 = 117,621.96 : x
  2. Step 2: Convert to fraction form
    159,694.37/239,043.31 = 117,621.96/x
  3. Step 3: Cross multiply
    159,694.37x = 239,043.31 × 117,621.96
  4. Step 4: Simplify right side
    159,694.37x = 28,116,742,647.09
  5. Step 5: Solve for x
    x = 28,116,742,647.09/159,694.37
  6. Step 6: Final answer
    x = 176,065.96

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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.