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Finding the Fourth Proportional to 67,250.96, 92,786.80 and 43,391.60

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Solution

The fourth proportional to 67,250.96, 92,786.80 and 43,391.60 is: 59,867.81

Step by Step Solution

  1. Step 1: Write the proportion equation
    67,250.96 : 92,786.80 = 43,391.60 : x
  2. Step 2: Convert to fraction form
    67,250.96/92,786.80 = 43,391.60/x
  3. Step 3: Cross multiply
    67,250.96x = 92,786.80 × 43,391.60
  4. Step 4: Simplify right side
    67,250.96x = 4,026,167,710.88
  5. Step 5: Solve for x
    x = 4,026,167,710.88/67,250.96
  6. Step 6: Final answer
    x = 59,867.81

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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.