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Finding the Fourth Proportional to 259,332.94, 388,999.41 and 69,793.73

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Solution

The fourth proportional to 259,332.94, 388,999.41 and 69,793.73 is: 104,690.60

Step by Step Solution

  1. Step 1: Write the proportion equation
    259,332.94 : 388,999.41 = 69,793.73 : x
  2. Step 2: Convert to fraction form
    259,332.94/388,999.41 = 69,793.73/x
  3. Step 3: Cross multiply
    259,332.94x = 388,999.41 × 69,793.73
  4. Step 4: Simplify right side
    259,332.94x = 27,149,719,442.73
  5. Step 5: Solve for x
    x = 27,149,719,442.73/259,332.94
  6. Step 6: Final answer
    x = 104,690.60

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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.