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Finding the Fourth Proportional to 148,324.67, 204,702.72 and 84,672.05

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Solution

The fourth proportional to 148,324.67, 204,702.72 and 84,672.05 is: 116,855.81

Step by Step Solution

  1. Step 1: Write the proportion equation
    148,324.67 : 204,702.72 = 84,672.05 : x
  2. Step 2: Convert to fraction form
    148,324.67/204,702.72 = 84,672.05/x
  3. Step 3: Cross multiply
    148,324.67x = 204,702.72 × 84,672.05
  4. Step 4: Simplify right side
    148,324.67x = 17,332,598,942.98
  5. Step 5: Solve for x
    x = 17,332,598,942.98/148,324.67
  6. Step 6: Final answer
    x = 116,855.81

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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.