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Finding the Fourth Proportional to 53,957.70, 80,850.15 and 34,200.90

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Solution

The fourth proportional to 53,957.70, 80,850.15 and 34,200.90 is: 51,246.59

Step by Step Solution

  1. Step 1: Write the proportion equation
    53,957.70 : 80,850.15 = 34,200.90 : x
  2. Step 2: Convert to fraction form
    53,957.70/80,850.15 = 34,200.90/x
  3. Step 3: Cross multiply
    53,957.70x = 80,850.15 × 34,200.90
  4. Step 4: Simplify right side
    53,957.70x = 2,765,147,895.14
  5. Step 5: Solve for x
    x = 2,765,147,895.14/53,957.70
  6. Step 6: Final answer
    x = 51,246.59

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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.