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Finding the Fourth Proportional to 163,257.69, 244,981.10 and 68,479.41

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Solution

The fourth proportional to 163,257.69, 244,981.10 and 68,479.41 is: 102,758.78

Step by Step Solution

  1. Step 1: Write the proportion equation
    163,257.69 : 244,981.10 = 68,479.41 : x
  2. Step 2: Convert to fraction form
    163,257.69/244,981.10 = 68,479.41/x
  3. Step 3: Cross multiply
    163,257.69x = 244,981.10 × 68,479.41
  4. Step 4: Simplify right side
    163,257.69x = 16,776,161,189.15
  5. Step 5: Solve for x
    x = 16,776,161,189.15/163,257.69
  6. Step 6: Final answer
    x = 102,758.78

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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.