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Finding the Fourth Proportional to 194,903.20, 268,939.20 and 108,858.52

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Solution

The fourth proportional to 194,903.20, 268,939.20 and 108,858.52 is: 150,209.56

Step by Step Solution

  1. Step 1: Write the proportion equation
    194,903.20 : 268,939.20 = 108,858.52 : x
  2. Step 2: Convert to fraction form
    194,903.20/268,939.20 = 108,858.52/x
  3. Step 3: Cross multiply
    194,903.20x = 268,939.20 × 108,858.52
  4. Step 4: Simplify right side
    194,903.20x = 29,276,323,281.98
  5. Step 5: Solve for x
    x = 29,276,323,281.98/194,903.20
  6. Step 6: Final answer
    x = 150,209.56

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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.