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Finding the Fourth Proportional to 75,628.88, 104,373 and 43,806.80

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Solution

The fourth proportional to 75,628.88, 104,373 and 43,806.80 is: 60,456.36

Step by Step Solution

  1. Step 1: Write the proportion equation
    75,628.88 : 104,373 = 43,806.80 : x
  2. Step 2: Convert to fraction form
    75,628.88/104,373 = 43,806.80/x
  3. Step 3: Cross multiply
    75,628.88x = 104,373 × 43,806.80
  4. Step 4: Simplify right side
    75,628.88x = 4,572,247,136.40
  5. Step 5: Solve for x
    x = 4,572,247,136.40/75,628.88
  6. Step 6: Final answer
    x = 60,456.36

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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.