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Finding the Fourth Proportional to 67,334.92, 92,930.34 and 39,041.80

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Solution

The fourth proportional to 67,334.92, 92,930.34 and 39,041.80 is: 53,882.41

Step by Step Solution

  1. Step 1: Write the proportion equation
    67,334.92 : 92,930.34 = 39,041.80 : x
  2. Step 2: Convert to fraction form
    67,334.92/92,930.34 = 39,041.80/x
  3. Step 3: Cross multiply
    67,334.92x = 92,930.34 × 39,041.80
  4. Step 4: Simplify right side
    67,334.92x = 3,628,167,748.21
  5. Step 5: Solve for x
    x = 3,628,167,748.21/67,334.92
  6. Step 6: Final answer
    x = 53,882.41

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Why These Related Problems?

These problems maintain the same ratio (1.38) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.