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Finding the Fourth Proportional to 159,768.97, 239,425.09 and 117,315.96

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Solution

The fourth proportional to 159,768.97, 239,425.09 and 117,315.96 is: 175,806.25

Step by Step Solution

  1. Step 1: Write the proportion equation
    159,768.97 : 239,425.09 = 117,315.96 : x
  2. Step 2: Convert to fraction form
    159,768.97/239,425.09 = 117,315.96/x
  3. Step 3: Cross multiply
    159,768.97x = 239,425.09 × 117,315.96
  4. Step 4: Simplify right side
    159,768.97x = 28,088,383,756.95
  5. Step 5: Solve for x
    x = 28,088,383,756.95/159,768.97
  6. Step 6: Final answer
    x = 175,806.25

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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.