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Finding the Fourth Proportional to 40,167.61, 60,251.08 and 12,087.52

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Solution

The fourth proportional to 40,167.61, 60,251.08 and 12,087.52 is: 18,131.18

Step by Step Solution

  1. Step 1: Write the proportion equation
    40,167.61 : 60,251.08 = 12,087.52 : x
  2. Step 2: Convert to fraction form
    40,167.61/60,251.08 = 12,087.52/x
  3. Step 3: Cross multiply
    40,167.61x = 60,251.08 × 12,087.52
  4. Step 4: Simplify right side
    40,167.61x = 728,286,074.08
  5. Step 5: Solve for x
    x = 728,286,074.08/40,167.61
  6. Step 6: Final answer
    x = 18,131.18

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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.