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Finding the Fourth Proportional to 58,871.58, 81,266.31 and 36,219.84

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Solution

The fourth proportional to 58,871.58, 81,266.31 and 36,219.84 is: 49,997.86

Step by Step Solution

  1. Step 1: Write the proportion equation
    58,871.58 : 81,266.31 = 36,219.84 : x
  2. Step 2: Convert to fraction form
    58,871.58/81,266.31 = 36,219.84/x
  3. Step 3: Cross multiply
    58,871.58x = 81,266.31 × 36,219.84
  4. Step 4: Simplify right side
    58,871.58x = 2,943,452,745.59
  5. Step 5: Solve for x
    x = 2,943,452,745.59/58,871.58
  6. Step 6: Final answer
    x = 49,997.86

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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.