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Finding the Fourth Proportional to 79,056, 118,571.04 and 55,611.36

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Solution

The fourth proportional to 79,056, 118,571.04 and 55,611.36 is: 83,407.92

Step by Step Solution

  1. Step 1: Write the proportion equation
    79,056 : 118,571.04 = 55,611.36 : x
  2. Step 2: Convert to fraction form
    79,056/118,571.04 = 55,611.36/x
  3. Step 3: Cross multiply
    79,056x = 118,571.04 × 55,611.36
  4. Step 4: Simplify right side
    79,056x = 6,593,896,791.01
  5. Step 5: Solve for x
    x = 6,593,896,791.01/79,056
  6. Step 6: Final answer
    x = 83,407.92

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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.