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Finding the Fourth Proportional to 70,392.77, 105,504.71 and 49,217.35

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Solution

The fourth proportional to 70,392.77, 105,504.71 and 49,217.35 is: 73,766.97

Step by Step Solution

  1. Step 1: Write the proportion equation
    70,392.77 : 105,504.71 = 49,217.35 : x
  2. Step 2: Convert to fraction form
    70,392.77/105,504.71 = 49,217.35/x
  3. Step 3: Cross multiply
    70,392.77x = 105,504.71 × 49,217.35
  4. Step 4: Simplify right side
    70,392.77x = 5,192,661,728.87
  5. Step 5: Solve for x
    x = 5,192,661,728.87/70,392.77
  6. Step 6: Final answer
    x = 73,766.97

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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.