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Finding the Fourth Proportional to 84,292.70, 116,323.83 and 48,481.79

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Solution

The fourth proportional to 84,292.70, 116,323.83 and 48,481.79 is: 66,904.81

Step by Step Solution

  1. Step 1: Write the proportion equation
    84,292.70 : 116,323.83 = 48,481.79 : x
  2. Step 2: Convert to fraction form
    84,292.70/116,323.83 = 48,481.79/x
  3. Step 3: Cross multiply
    84,292.70x = 116,323.83 × 48,481.79
  4. Step 4: Simplify right side
    84,292.70x = 5,639,586,916.44
  5. Step 5: Solve for x
    x = 5,639,586,916.44/84,292.70
  6. Step 6: Final answer
    x = 66,904.81

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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.