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Finding the Fourth Proportional to 248,363.57, 342,732.20 and 140,927.19

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Solution

The fourth proportional to 248,363.57, 342,732.20 and 140,927.19 is: 194,474.12

Step by Step Solution

  1. Step 1: Write the proportion equation
    248,363.57 : 342,732.20 = 140,927.19 : x
  2. Step 2: Convert to fraction form
    248,363.57/342,732.20 = 140,927.19/x
  3. Step 3: Cross multiply
    248,363.57x = 342,732.20 × 140,927.19
  4. Step 4: Simplify right side
    248,363.57x = 48,300,285,163.88
  5. Step 5: Solve for x
    x = 48,300,285,163.88/248,363.57
  6. Step 6: Final answer
    x = 194,474.12

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Why These Related Problems?

These problems maintain the same ratio (1.38) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.