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Finding the Fourth Proportional to 84,672.45, 116,846.28 and 48,861.54

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Solution

The fourth proportional to 84,672.45, 116,846.28 and 48,861.54 is: 67,427.94

Step by Step Solution

  1. Step 1: Write the proportion equation
    84,672.45 : 116,846.28 = 48,861.54 : x
  2. Step 2: Convert to fraction form
    84,672.45/116,846.28 = 48,861.54/x
  3. Step 3: Cross multiply
    84,672.45x = 116,846.28 × 48,861.54
  4. Step 4: Simplify right side
    84,672.45x = 5,709,289,184.07
  5. Step 5: Solve for x
    x = 5,709,289,184.07/84,672.45
  6. Step 6: Final answer
    x = 67,427.94

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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.