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Finding the Fourth Proportional to 67,212.54, 100,762.65 and 25,069.05

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Solution

The fourth proportional to 67,212.54, 100,762.65 and 25,069.05 is: 37,582.63

Step by Step Solution

  1. Step 1: Write the proportion equation
    67,212.54 : 100,762.65 = 25,069.05 : x
  2. Step 2: Convert to fraction form
    67,212.54/100,762.65 = 25,069.05/x
  3. Step 3: Cross multiply
    67,212.54x = 100,762.65 × 25,069.05
  4. Step 4: Simplify right side
    67,212.54x = 2,526,023,910.98
  5. Step 5: Solve for x
    x = 2,526,023,910.98/67,212.54
  6. Step 6: Final answer
    x = 37,582.63

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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.