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Finding the Fourth Proportional to 183,383.94, 275,019.85 and 126,821.50

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Solution

The fourth proportional to 183,383.94, 275,019.85 and 126,821.50 is: 190,193.48

Step by Step Solution

  1. Step 1: Write the proportion equation
    183,383.94 : 275,019.85 = 126,821.50 : x
  2. Step 2: Convert to fraction form
    183,383.94/275,019.85 = 126,821.50/x
  3. Step 3: Cross multiply
    183,383.94x = 275,019.85 × 126,821.50
  4. Step 4: Simplify right side
    183,383.94x = 34,878,429,906.78
  5. Step 5: Solve for x
    x = 34,878,429,906.78/183,383.94
  6. Step 6: Final answer
    x = 190,193.48

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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.