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Finding the Fourth Proportional to 58,571.28, 87,891.93 and 53,806.98

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Solution

The fourth proportional to 58,571.28, 87,891.93 and 53,806.98 is: 80,742.63

Step by Step Solution

  1. Step 1: Write the proportion equation
    58,571.28 : 87,891.93 = 53,806.98 : x
  2. Step 2: Convert to fraction form
    58,571.28/87,891.93 = 53,806.98/x
  3. Step 3: Cross multiply
    58,571.28x = 87,891.93 × 53,806.98
  4. Step 4: Simplify right side
    58,571.28x = 4,729,199,319.67
  5. Step 5: Solve for x
    x = 4,729,199,319.67/58,571.28
  6. Step 6: Final answer
    x = 80,742.63

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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.