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Finding the Fourth Proportional to 70,846.54, 97,772.67 and 39,015.43

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Solution

The fourth proportional to 70,846.54, 97,772.67 and 39,015.43 is: 53,843.75

Step by Step Solution

  1. Step 1: Write the proportion equation
    70,846.54 : 97,772.67 = 39,015.43 : x
  2. Step 2: Convert to fraction form
    70,846.54/97,772.67 = 39,015.43/x
  3. Step 3: Cross multiply
    70,846.54x = 97,772.67 × 39,015.43
  4. Step 4: Simplify right side
    70,846.54x = 3,814,642,811.65
  5. Step 5: Solve for x
    x = 3,814,642,811.65/70,846.54
  6. Step 6: Final answer
    x = 53,843.75

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Why These Related Problems?

These problems maintain the same ratio (1.38) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.