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Finding the Fourth Proportional to 159,635.44, 239,510.40 and 68,412.57

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Solution

The fourth proportional to 159,635.44, 239,510.40 and 68,412.57 is: 102,643.39

Step by Step Solution

  1. Step 1: Write the proportion equation
    159,635.44 : 239,510.40 = 68,412.57 : x
  2. Step 2: Convert to fraction form
    159,635.44/239,510.40 = 68,412.57/x
  3. Step 3: Cross multiply
    159,635.44x = 239,510.40 × 68,412.57
  4. Step 4: Simplify right side
    159,635.44x = 16,385,522,005.73
  5. Step 5: Solve for x
    x = 16,385,522,005.73/159,635.44
  6. Step 6: Final answer
    x = 102,643.39

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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.