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Finding the Fourth Proportional to 73,986.68, 110,850.84 and 61,586.42

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Solution

The fourth proportional to 73,986.68, 110,850.84 and 61,586.42 is: 92,272.10

Step by Step Solution

  1. Step 1: Write the proportion equation
    73,986.68 : 110,850.84 = 61,586.42 : x
  2. Step 2: Convert to fraction form
    73,986.68/110,850.84 = 61,586.42/x
  3. Step 3: Cross multiply
    73,986.68x = 110,850.84 × 61,586.42
  4. Step 4: Simplify right side
    73,986.68x = 6,826,906,389.59
  5. Step 5: Solve for x
    x = 6,826,906,389.59/73,986.68
  6. Step 6: Final answer
    x = 92,272.10

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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.