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Finding the Fourth Proportional to 252,698.76, 379,049.37 and 102,940.49

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Solution

The fourth proportional to 252,698.76, 379,049.37 and 102,940.49 is: 154,411.24

Step by Step Solution

  1. Step 1: Write the proportion equation
    252,698.76 : 379,049.37 = 102,940.49 : x
  2. Step 2: Convert to fraction form
    252,698.76/379,049.37 = 102,940.49/x
  3. Step 3: Cross multiply
    252,698.76x = 379,049.37 × 102,940.49
  4. Step 4: Simplify right side
    252,698.76x = 39,019,527,881.99
  5. Step 5: Solve for x
    x = 39,019,527,881.99/252,698.76
  6. Step 6: Final answer
    x = 154,411.24

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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.