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Finding the Fourth Proportional to 103,479.27, 155,089.11 and 44,245.41

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Solution

The fourth proportional to 103,479.27, 155,089.11 and 44,245.41 is: 66,312.62

Step by Step Solution

  1. Step 1: Write the proportion equation
    103,479.27 : 155,089.11 = 44,245.41 : x
  2. Step 2: Convert to fraction form
    103,479.27/155,089.11 = 44,245.41/x
  3. Step 3: Cross multiply
    103,479.27x = 155,089.11 × 44,245.41
  4. Step 4: Simplify right side
    103,479.27x = 6,861,981,258.49
  5. Step 5: Solve for x
    x = 6,861,981,258.49/103,479.27
  6. Step 6: Final answer
    x = 66,312.62

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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.