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Finding the Fourth Proportional to 245,399.60, 368,107.58 and 67,891.74

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Solution

The fourth proportional to 245,399.60, 368,107.58 and 67,891.74 is: 101,839.87

Step by Step Solution

  1. Step 1: Write the proportion equation
    245,399.60 : 368,107.58 = 67,891.74 : x
  2. Step 2: Convert to fraction form
    245,399.60/368,107.58 = 67,891.74/x
  3. Step 3: Cross multiply
    245,399.60x = 368,107.58 × 67,891.74
  4. Step 4: Simplify right side
    245,399.60x = 24,991,463,773.93
  5. Step 5: Solve for x
    x = 24,991,463,773.93/245,399.60
  6. Step 6: Final answer
    x = 101,839.87

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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.