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Finding the Fourth Proportional to 75,757.69, 104,512.02 and 45,525.46

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Solution

The fourth proportional to 75,757.69, 104,512.02 and 45,525.46 is: 62,804.95

Step by Step Solution

  1. Step 1: Write the proportion equation
    75,757.69 : 104,512.02 = 45,525.46 : x
  2. Step 2: Convert to fraction form
    75,757.69/104,512.02 = 45,525.46/x
  3. Step 3: Cross multiply
    75,757.69x = 104,512.02 × 45,525.46
  4. Step 4: Simplify right side
    75,757.69x = 4,757,957,786.03
  5. Step 5: Solve for x
    x = 4,757,957,786.03/75,757.69
  6. Step 6: Final answer
    x = 62,804.95

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1.5x scale

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.