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Finding the Fourth Proportional to 54,575.88, 81,780.36 and 36,740.48

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Solution

The fourth proportional to 54,575.88, 81,780.36 and 36,740.48 is: 55,054.53

Step by Step Solution

  1. Step 1: Write the proportion equation
    54,575.88 : 81,780.36 = 36,740.48 : x
  2. Step 2: Convert to fraction form
    54,575.88/81,780.36 = 36,740.48/x
  3. Step 3: Cross multiply
    54,575.88x = 81,780.36 × 36,740.48
  4. Step 4: Simplify right side
    54,575.88x = 3,004,649,680.97
  5. Step 5: Solve for x
    x = 3,004,649,680.97/54,575.88
  6. Step 6: Final answer
    x = 55,054.53

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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.