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Finding the Fourth Proportional to 57,098.31, 85,745.48 and 35,041.20

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Solution

The fourth proportional to 57,098.31, 85,745.48 and 35,041.20 is: 52,621.95

Step by Step Solution

  1. Step 1: Write the proportion equation
    57,098.31 : 85,745.48 = 35,041.20 : x
  2. Step 2: Convert to fraction form
    57,098.31/85,745.48 = 35,041.20/x
  3. Step 3: Cross multiply
    57,098.31x = 85,745.48 × 35,041.20
  4. Step 4: Simplify right side
    57,098.31x = 3,004,624,338.57
  5. Step 5: Solve for x
    x = 3,004,624,338.57/57,098.31
  6. Step 6: Final answer
    x = 52,621.95

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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.