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Finding the Fourth Proportional to 57,392.35, 86,110.39 and 51,826.43

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Solution

The fourth proportional to 57,392.35, 86,110.39 and 51,826.43 is: 77,759.40

Step by Step Solution

  1. Step 1: Write the proportion equation
    57,392.35 : 86,110.39 = 51,826.43 : x
  2. Step 2: Convert to fraction form
    57,392.35/86,110.39 = 51,826.43/x
  3. Step 3: Cross multiply
    57,392.35x = 86,110.39 × 51,826.43
  4. Step 4: Simplify right side
    57,392.35x = 4,462,794,379.67
  5. Step 5: Solve for x
    x = 4,462,794,379.67/57,392.35
  6. Step 6: Final answer
    x = 77,759.40

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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.