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Finding the Fourth Proportional to 91,181.46, 125,851.41 and 53,467.86

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Solution

The fourth proportional to 91,181.46, 125,851.41 and 53,467.86 is: 73,797.96

Step by Step Solution

  1. Step 1: Write the proportion equation
    91,181.46 : 125,851.41 = 53,467.86 : x
  2. Step 2: Convert to fraction form
    91,181.46/125,851.41 = 53,467.86/x
  3. Step 3: Cross multiply
    91,181.46x = 125,851.41 × 53,467.86
  4. Step 4: Simplify right side
    91,181.46x = 6,729,005,570.68
  5. Step 5: Solve for x
    x = 6,729,005,570.68/91,181.46
  6. Step 6: Final answer
    x = 73,797.96

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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.