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Finding the Fourth Proportional to 87,597.50, 120,884.73 and 49,871.75

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Solution

The fourth proportional to 87,597.50, 120,884.73 and 49,871.75 is: 68,823.12

Step by Step Solution

  1. Step 1: Write the proportion equation
    87,597.50 : 120,884.73 = 49,871.75 : x
  2. Step 2: Convert to fraction form
    87,597.50/120,884.73 = 49,871.75/x
  3. Step 3: Cross multiply
    87,597.50x = 120,884.73 × 49,871.75
  4. Step 4: Simplify right side
    87,597.50x = 6,028,733,033.38
  5. Step 5: Solve for x
    x = 6,028,733,033.38/87,597.50
  6. Step 6: Final answer
    x = 68,823.12

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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.