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Finding the Fourth Proportional to 172,450.60, 258,971.10 and 93,718.60

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Solution

The fourth proportional to 172,450.60, 258,971.10 and 93,718.60 is: 140,738.33

Step by Step Solution

  1. Step 1: Write the proportion equation
    172,450.60 : 258,971.10 = 93,718.60 : x
  2. Step 2: Convert to fraction form
    172,450.60/258,971.10 = 93,718.60/x
  3. Step 3: Cross multiply
    172,450.60x = 258,971.10 × 93,718.60
  4. Step 4: Simplify right side
    172,450.60x = 24,270,408,932.46
  5. Step 5: Solve for x
    x = 24,270,408,932.46/172,450.60
  6. Step 6: Final answer
    x = 140,738.33

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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.