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Finding the Fourth Proportional to 239,835.98, 359,691.30 and 71,310.93

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Solution

The fourth proportional to 239,835.98, 359,691.30 and 71,310.93 is: 106,947.75

Step by Step Solution

  1. Step 1: Write the proportion equation
    239,835.98 : 359,691.30 = 71,310.93 : x
  2. Step 2: Convert to fraction form
    239,835.98/359,691.30 = 71,310.93/x
  3. Step 3: Cross multiply
    239,835.98x = 359,691.30 × 71,310.93
  4. Step 4: Simplify right side
    239,835.98x = 25,649,919,767.07
  5. Step 5: Solve for x
    x = 25,649,919,767.07/239,835.98
  6. Step 6: Final answer
    x = 106,947.75

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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.