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Finding the Fourth Proportional to 319,908.54, 479,701.93 and 106,600.92

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Solution

The fourth proportional to 319,908.54, 479,701.93 and 106,600.92 is: 159,847.77

Step by Step Solution

  1. Step 1: Write the proportion equation
    319,908.54 : 479,701.93 = 106,600.92 : x
  2. Step 2: Convert to fraction form
    319,908.54/479,701.93 = 106,600.92/x
  3. Step 3: Cross multiply
    319,908.54x = 479,701.93 × 106,600.92
  4. Step 4: Simplify right side
    319,908.54x = 51,136,667,063.78
  5. Step 5: Solve for x
    x = 51,136,667,063.78/319,908.54
  6. Step 6: Final answer
    x = 159,847.77

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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.