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Finding the Fourth Proportional to 79,961.80, 119,682.31 and 58,893.55

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Solution

The fourth proportional to 79,961.80, 119,682.31 and 58,893.55 is: 88,148.54

Step by Step Solution

  1. Step 1: Write the proportion equation
    79,961.80 : 119,682.31 = 58,893.55 : x
  2. Step 2: Convert to fraction form
    79,961.80/119,682.31 = 58,893.55/x
  3. Step 3: Cross multiply
    79,961.80x = 119,682.31 × 58,893.55
  4. Step 4: Simplify right side
    79,961.80x = 7,048,516,108.10
  5. Step 5: Solve for x
    x = 7,048,516,108.10/79,961.80
  6. Step 6: Final answer
    x = 88,148.54

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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.