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Finding the Fourth Proportional to 58,859.56, 81,172.38 and 43,789.96

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Solution

The fourth proportional to 58,859.56, 81,172.38 and 43,789.96 is: 60,390.11

Step by Step Solution

  1. Step 1: Write the proportion equation
    58,859.56 : 81,172.38 = 43,789.96 : x
  2. Step 2: Convert to fraction form
    58,859.56/81,172.38 = 43,789.96/x
  3. Step 3: Cross multiply
    58,859.56x = 81,172.38 × 43,789.96
  4. Step 4: Simplify right side
    58,859.56x = 3,554,535,273.30
  5. Step 5: Solve for x
    x = 3,554,535,273.30/58,859.56
  6. Step 6: Final answer
    x = 60,390.11

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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.