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Finding the Fourth Proportional to 58,238.56, 80,287.80 and 49,249.96

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Solution

The fourth proportional to 58,238.56, 80,287.80 and 49,249.96 is: 67,896.10

Step by Step Solution

  1. Step 1: Write the proportion equation
    58,238.56 : 80,287.80 = 49,249.96 : x
  2. Step 2: Convert to fraction form
    58,238.56/80,287.80 = 49,249.96/x
  3. Step 3: Cross multiply
    58,238.56x = 80,287.80 × 49,249.96
  4. Step 4: Simplify right side
    58,238.56x = 3,954,170,938.49
  5. Step 5: Solve for x
    x = 3,954,170,938.49/58,238.56
  6. Step 6: Final answer
    x = 67,896.10

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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.