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Finding the Fourth Proportional to 64,984.40, 97,591.80 and 50,229.20

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Solution

The fourth proportional to 64,984.40, 97,591.80 and 50,229.20 is: 75,432.84

Step by Step Solution

  1. Step 1: Write the proportion equation
    64,984.40 : 97,591.80 = 50,229.20 : x
  2. Step 2: Convert to fraction form
    64,984.40/97,591.80 = 50,229.20/x
  3. Step 3: Cross multiply
    64,984.40x = 97,591.80 × 50,229.20
  4. Step 4: Simplify right side
    64,984.40x = 4,901,958,040.56
  5. Step 5: Solve for x
    x = 4,901,958,040.56/64,984.40
  6. Step 6: Final answer
    x = 75,432.84

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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.