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Finding the Fourth Proportional to 67,259.41, 100,836.80 and 43,516.79

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Solution

The fourth proportional to 67,259.41, 100,836.80 and 43,516.79 is: 65,241.34

Step by Step Solution

  1. Step 1: Write the proportion equation
    67,259.41 : 100,836.80 = 43,516.79 : x
  2. Step 2: Convert to fraction form
    67,259.41/100,836.80 = 43,516.79/x
  3. Step 3: Cross multiply
    67,259.41x = 100,836.80 × 43,516.79
  4. Step 4: Simplify right side
    67,259.41x = 4,388,094,236.64
  5. Step 5: Solve for x
    x = 4,388,094,236.64/67,259.41
  6. Step 6: Final answer
    x = 65,241.34

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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.