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Finding the Fourth Proportional to 79,696.80, 109,965.56 and 60,571.48

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Solution

The fourth proportional to 79,696.80, 109,965.56 and 60,571.48 is: 83,576.46

Step by Step Solution

  1. Step 1: Write the proportion equation
    79,696.80 : 109,965.56 = 60,571.48 : x
  2. Step 2: Convert to fraction form
    79,696.80/109,965.56 = 60,571.48/x
  3. Step 3: Cross multiply
    79,696.80x = 109,965.56 × 60,571.48
  4. Step 4: Simplify right side
    79,696.80x = 6,660,776,718.23
  5. Step 5: Solve for x
    x = 6,660,776,718.23/79,696.80
  6. Step 6: Final answer
    x = 83,576.46

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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.