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Finding the Fourth Proportional to 52,563.20, 78,691.20 and 51,027.20

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Solution

The fourth proportional to 52,563.20, 78,691.20 and 51,027.20 is: 76,391.69

Step by Step Solution

  1. Step 1: Write the proportion equation
    52,563.20 : 78,691.20 = 51,027.20 : x
  2. Step 2: Convert to fraction form
    52,563.20/78,691.20 = 51,027.20/x
  3. Step 3: Cross multiply
    52,563.20x = 78,691.20 × 51,027.20
  4. Step 4: Simplify right side
    52,563.20x = 4,015,391,600.64
  5. Step 5: Solve for x
    x = 4,015,391,600.64/52,563.20
  6. Step 6: Final answer
    x = 76,391.69

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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.