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Finding the Fourth Proportional to 70,392.27, 105,503.95 and 49,216.85

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Solution

The fourth proportional to 70,392.27, 105,503.95 and 49,216.85 is: 73,766.23

Step by Step Solution

  1. Step 1: Write the proportion equation
    70,392.27 : 105,503.95 = 49,216.85 : x
  2. Step 2: Convert to fraction form
    70,392.27/105,503.95 = 49,216.85/x
  3. Step 3: Cross multiply
    70,392.27x = 105,503.95 × 49,216.85
  4. Step 4: Simplify right side
    70,392.27x = 5,192,572,081.56
  5. Step 5: Solve for x
    x = 5,192,572,081.56/70,392.27
  6. Step 6: Final answer
    x = 73,766.23

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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.