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Finding the Fourth Proportional to 79,496.94, 109,703.56 and 43,686.98

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Solution

The fourth proportional to 79,496.94, 109,703.56 and 43,686.98 is: 60,286.81

Step by Step Solution

  1. Step 1: Write the proportion equation
    79,496.94 : 109,703.56 = 43,686.98 : x
  2. Step 2: Convert to fraction form
    79,496.94/109,703.56 = 43,686.98/x
  3. Step 3: Cross multiply
    79,496.94x = 109,703.56 × 43,686.98
  4. Step 4: Simplify right side
    79,496.94x = 4,792,617,231.65
  5. Step 5: Solve for x
    x = 4,792,617,231.65/79,496.94
  6. Step 6: Final answer
    x = 60,286.81

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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.