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Finding the Fourth Proportional to 247,093.18, 371,049.69 and 154,189.42

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Solution

The fourth proportional to 247,093.18, 371,049.69 and 154,189.42 is: 231,539.93

Step by Step Solution

  1. Step 1: Write the proportion equation
    247,093.18 : 371,049.69 = 154,189.42 : x
  2. Step 2: Convert to fraction form
    247,093.18/371,049.69 = 154,189.42/x
  3. Step 3: Cross multiply
    247,093.18x = 371,049.69 × 154,189.42
  4. Step 4: Simplify right side
    247,093.18x = 57,211,936,492.28
  5. Step 5: Solve for x
    x = 57,211,936,492.28/247,093.18
  6. Step 6: Final answer
    x = 231,539.93

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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.