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Finding the Fourth Proportional to 240,755.40, 361,063.44 and 72,268.92

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Solution

The fourth proportional to 240,755.40, 361,063.44 and 72,268.92 is: 108,382.47

Step by Step Solution

  1. Step 1: Write the proportion equation
    240,755.40 : 361,063.44 = 72,268.92 : x
  2. Step 2: Convert to fraction form
    240,755.40/361,063.44 = 72,268.92/x
  3. Step 3: Cross multiply
    240,755.40x = 361,063.44 × 72,268.92
  4. Step 4: Simplify right side
    240,755.40x = 26,093,664,860.28
  5. Step 5: Solve for x
    x = 26,093,664,860.28/240,755.40
  6. Step 6: Final answer
    x = 108,382.47

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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.