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Finding the Fourth Proportional to 172,806.44, 259,245.84 and 72,966.92

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Solution

The fourth proportional to 172,806.44, 259,245.84 and 72,966.92 is: 109,465.66

Step by Step Solution

  1. Step 1: Write the proportion equation
    172,806.44 : 259,245.84 = 72,966.92 : x
  2. Step 2: Convert to fraction form
    172,806.44/259,245.84 = 72,966.92/x
  3. Step 3: Cross multiply
    172,806.44x = 259,245.84 × 72,966.92
  4. Step 4: Simplify right side
    172,806.44x = 18,916,370,467.61
  5. Step 5: Solve for x
    x = 18,916,370,467.61/172,806.44
  6. Step 6: Final answer
    x = 109,465.66

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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.