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Finding the Fourth Proportional to 240,738.99, 361,107.60 and 72,258.59

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Solution

The fourth proportional to 240,738.99, 361,107.60 and 72,258.59 is: 108,387.61

Step by Step Solution

  1. Step 1: Write the proportion equation
    240,738.99 : 361,107.60 = 72,258.59 : x
  2. Step 2: Convert to fraction form
    240,738.99/361,107.60 = 72,258.59/x
  3. Step 3: Cross multiply
    240,738.99x = 361,107.60 × 72,258.59
  4. Step 4: Simplify right side
    240,738.99x = 26,093,124,208.75
  5. Step 5: Solve for x
    x = 26,093,124,208.75/240,738.99
  6. Step 6: Final answer
    x = 108,387.61

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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.