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Finding the Fourth Proportional to 143,013.21, 214,589.06 and 58,835.58

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Solution

The fourth proportional to 143,013.21, 214,589.06 and 58,835.58 is: 88,281.86

Step by Step Solution

  1. Step 1: Write the proportion equation
    143,013.21 : 214,589.06 = 58,835.58 : x
  2. Step 2: Convert to fraction form
    143,013.21/214,589.06 = 58,835.58/x
  3. Step 3: Cross multiply
    143,013.21x = 214,589.06 × 58,835.58
  4. Step 4: Simplify right side
    143,013.21x = 12,625,471,806.75
  5. Step 5: Solve for x
    x = 12,625,471,806.75/143,013.21
  6. Step 6: Final answer
    x = 88,281.86

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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.