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Finding the Fourth Proportional to 84,478.88, 126,669.11 and 37,092.08

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Solution

The fourth proportional to 84,478.88, 126,669.11 and 37,092.08 is: 55,616.51

Step by Step Solution

  1. Step 1: Write the proportion equation
    84,478.88 : 126,669.11 = 37,092.08 : x
  2. Step 2: Convert to fraction form
    84,478.88/126,669.11 = 37,092.08/x
  3. Step 3: Cross multiply
    84,478.88x = 126,669.11 × 37,092.08
  4. Step 4: Simplify right side
    84,478.88x = 4,698,419,942.84
  5. Step 5: Solve for x
    x = 4,698,419,942.84/84,478.88
  6. Step 6: Final answer
    x = 55,616.51

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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.