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Finding the Fourth Proportional to 240,738.86, 361,107.41 and 72,258.45

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Solution

The fourth proportional to 240,738.86, 361,107.41 and 72,258.45 is: 108,387.41

Step by Step Solution

  1. Step 1: Write the proportion equation
    240,738.86 : 361,107.41 = 72,258.45 : x
  2. Step 2: Convert to fraction form
    240,738.86/361,107.41 = 72,258.45/x
  3. Step 3: Cross multiply
    240,738.86x = 361,107.41 × 72,258.45
  4. Step 4: Simplify right side
    240,738.86x = 26,093,061,730.11
  5. Step 5: Solve for x
    x = 26,093,061,730.11/240,738.86
  6. Step 6: Final answer
    x = 108,387.41

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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.