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Finding the Fourth Proportional to 71,279.76, 106,845.82 and 58,667.26

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Solution

The fourth proportional to 71,279.76, 106,845.82 and 58,667.26 is: 87,940.13

Step by Step Solution

  1. Step 1: Write the proportion equation
    71,279.76 : 106,845.82 = 58,667.26 : x
  2. Step 2: Convert to fraction form
    71,279.76/106,845.82 = 58,667.26/x
  3. Step 3: Cross multiply
    71,279.76x = 106,845.82 × 58,667.26
  4. Step 4: Simplify right side
    71,279.76x = 6,268,351,501.85
  5. Step 5: Solve for x
    x = 6,268,351,501.85/71,279.76
  6. Step 6: Final answer
    x = 87,940.13

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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.