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Finding the Fourth Proportional to 203,994.48, 305,336.88 and 108,987.24

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Solution

The fourth proportional to 203,994.48, 305,336.88 and 108,987.24 is: 163,131.00

Step by Step Solution

  1. Step 1: Write the proportion equation
    203,994.48 : 305,336.88 = 108,987.24 : x
  2. Step 2: Convert to fraction form
    203,994.48/305,336.88 = 108,987.24/x
  3. Step 3: Cross multiply
    203,994.48x = 305,336.88 × 108,987.24
  4. Step 4: Simplify right side
    203,994.48x = 33,277,823,821.41
  5. Step 5: Solve for x
    x = 33,277,823,821.41/203,994.48
  6. Step 6: Final answer
    x = 163,131.00

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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.