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Finding the Fourth Proportional to 57,295.40, 85,870.20 and 41,694.80

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Solution

The fourth proportional to 57,295.40, 85,870.20 and 41,694.80 is: 62,489.15

Step by Step Solution

  1. Step 1: Write the proportion equation
    57,295.40 : 85,870.20 = 41,694.80 : x
  2. Step 2: Convert to fraction form
    57,295.40/85,870.20 = 41,694.80/x
  3. Step 3: Cross multiply
    57,295.40x = 85,870.20 × 41,694.80
  4. Step 4: Simplify right side
    57,295.40x = 3,580,340,814.96
  5. Step 5: Solve for x
    x = 3,580,340,814.96/57,295.40
  6. Step 6: Final answer
    x = 62,489.15

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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.