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Finding the Fourth Proportional to 90,794.86, 125,245.71 and 54,487.02

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Solution

The fourth proportional to 90,794.86, 125,245.71 and 54,487.02 is: 75,161.36

Step by Step Solution

  1. Step 1: Write the proportion equation
    90,794.86 : 125,245.71 = 54,487.02 : x
  2. Step 2: Convert to fraction form
    90,794.86/125,245.71 = 54,487.02/x
  3. Step 3: Cross multiply
    90,794.86x = 125,245.71 × 54,487.02
  4. Step 4: Simplify right side
    90,794.86x = 6,824,265,505.68
  5. Step 5: Solve for x
    x = 6,824,265,505.68/90,794.86
  6. Step 6: Final answer
    x = 75,161.36

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1.5x scale

Why These Related Problems?

These problems maintain the same ratio (1.38) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.