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Finding the Fourth Proportional to 67,262.59, 92,819.83 and 40,419.90

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Solution

The fourth proportional to 67,262.59, 92,819.83 and 40,419.90 is: 55,777.93

Step by Step Solution

  1. Step 1: Write the proportion equation
    67,262.59 : 92,819.83 = 40,419.90 : x
  2. Step 2: Convert to fraction form
    67,262.59/92,819.83 = 40,419.90/x
  3. Step 3: Cross multiply
    67,262.59x = 92,819.83 × 40,419.90
  4. Step 4: Simplify right side
    67,262.59x = 3,751,768,246.62
  5. Step 5: Solve for x
    x = 3,751,768,246.62/67,262.59
  6. Step 6: Final answer
    x = 55,777.93

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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.