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Finding the Fourth Proportional to 91,850.60, 137,797.50 and 28,668.44

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Solution

The fourth proportional to 91,850.60, 137,797.50 and 28,668.44 is: 43,009.40

Step by Step Solution

  1. Step 1: Write the proportion equation
    91,850.60 : 137,797.50 = 28,668.44 : x
  2. Step 2: Convert to fraction form
    91,850.60/137,797.50 = 28,668.44/x
  3. Step 3: Cross multiply
    91,850.60x = 137,797.50 × 28,668.44
  4. Step 4: Simplify right side
    91,850.60x = 3,950,439,360.90
  5. Step 5: Solve for x
    x = 3,950,439,360.90/91,850.60
  6. Step 6: Final answer
    x = 43,009.40

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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.