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Finding the Fourth Proportional to 123,551.40, 185,183.90 and 56,851.56

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Solution

The fourth proportional to 123,551.40, 185,183.90 and 56,851.56 is: 85,211.45

Step by Step Solution

  1. Step 1: Write the proportion equation
    123,551.40 : 185,183.90 = 56,851.56 : x
  2. Step 2: Convert to fraction form
    123,551.40/185,183.90 = 56,851.56/x
  3. Step 3: Cross multiply
    123,551.40x = 185,183.90 × 56,851.56
  4. Step 4: Simplify right side
    123,551.40x = 10,527,993,601.88
  5. Step 5: Solve for x
    x = 10,527,993,601.88/123,551.40
  6. Step 6: Final answer
    x = 85,211.45

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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.