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Finding the Fourth Proportional to 57,325.60, 85,842.60 and 54,701.20

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Solution

The fourth proportional to 57,325.60, 85,842.60 and 54,701.20 is: 81,912.67

Step by Step Solution

  1. Step 1: Write the proportion equation
    57,325.60 : 85,842.60 = 54,701.20 : x
  2. Step 2: Convert to fraction form
    57,325.60/85,842.60 = 54,701.20/x
  3. Step 3: Cross multiply
    57,325.60x = 85,842.60 × 54,701.20
  4. Step 4: Simplify right side
    57,325.60x = 4,695,693,231.12
  5. Step 5: Solve for x
    x = 4,695,693,231.12/57,325.60
  6. Step 6: Final answer
    x = 81,912.67

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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.