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Finding the Fourth Proportional to 148,379.52, 204,703.68 and 84,704.64

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Solution

The fourth proportional to 148,379.52, 204,703.68 and 84,704.64 is: 116,858.12

Step by Step Solution

  1. Step 1: Write the proportion equation
    148,379.52 : 204,703.68 = 84,704.64 : x
  2. Step 2: Convert to fraction form
    148,379.52/204,703.68 = 84,704.64/x
  3. Step 3: Cross multiply
    148,379.52x = 204,703.68 × 84,704.64
  4. Step 4: Simplify right side
    148,379.52x = 17,339,351,521.08
  5. Step 5: Solve for x
    x = 17,339,351,521.08/148,379.52
  6. Step 6: Final answer
    x = 116,858.12

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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.