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Finding the Fourth Proportional to 203,824.48, 305,406.68 and 124,698.88

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Solution

The fourth proportional to 203,824.48, 305,406.68 and 124,698.88 is: 186,846.40

Step by Step Solution

  1. Step 1: Write the proportion equation
    203,824.48 : 305,406.68 = 124,698.88 : x
  2. Step 2: Convert to fraction form
    203,824.48/305,406.68 = 124,698.88/x
  3. Step 3: Cross multiply
    203,824.48x = 305,406.68 × 124,698.88
  4. Step 4: Simplify right side
    203,824.48x = 38,083,870,940.52
  5. Step 5: Solve for x
    x = 38,083,870,940.52/203,824.48
  6. Step 6: Final answer
    x = 186,846.40

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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.