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Finding the Fourth Proportional to 127,524.80, 191,200.80 and 67,563.20

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Solution

The fourth proportional to 127,524.80, 191,200.80 and 67,563.20 is: 101,299.02

Step by Step Solution

  1. Step 1: Write the proportion equation
    127,524.80 : 191,200.80 = 67,563.20 : x
  2. Step 2: Convert to fraction form
    127,524.80/191,200.80 = 67,563.20/x
  3. Step 3: Cross multiply
    127,524.80x = 191,200.80 × 67,563.20
  4. Step 4: Simplify right side
    127,524.80x = 12,918,137,890.56
  5. Step 5: Solve for x
    x = 12,918,137,890.56/127,524.80
  6. Step 6: Final answer
    x = 101,299.02

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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.