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Finding the Fourth Proportional to 49,447.78, 73,811.99 and 45,793.06

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Solution

The fourth proportional to 49,447.78, 73,811.99 and 45,793.06 is: 68,356.49

Step by Step Solution

  1. Step 1: Write the proportion equation
    49,447.78 : 73,811.99 = 45,793.06 : x
  2. Step 2: Convert to fraction form
    49,447.78/73,811.99 = 45,793.06/x
  3. Step 3: Cross multiply
    49,447.78x = 73,811.99 × 45,793.06
  4. Step 4: Simplify right side
    49,447.78x = 3,380,076,886.79
  5. Step 5: Solve for x
    x = 3,380,076,886.79/49,447.78
  6. Step 6: Final answer
    x = 68,356.49

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Why These Related Problems?

These problems maintain the same ratio (1.49) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.