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Finding the Fourth Proportional to 57,874.40, 86,811.60 and 34,157.60

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Solution

The fourth proportional to 57,874.40, 86,811.60 and 34,157.60 is: 51,236.40

Step by Step Solution

  1. Step 1: Write the proportion equation
    57,874.40 : 86,811.60 = 34,157.60 : x
  2. Step 2: Convert to fraction form
    57,874.40/86,811.60 = 34,157.60/x
  3. Step 3: Cross multiply
    57,874.40x = 86,811.60 × 34,157.60
  4. Step 4: Simplify right side
    57,874.40x = 2,965,275,908.16
  5. Step 5: Solve for x
    x = 2,965,275,908.16/57,874.40
  6. Step 6: Final answer
    x = 51,236.40

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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.