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Finding the Fourth Proportional to 53,464.80, 80,216.40 and 51,544.80

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Solution

The fourth proportional to 53,464.80, 80,216.40 and 51,544.80 is: 77,335.71

Step by Step Solution

  1. Step 1: Write the proportion equation
    53,464.80 : 80,216.40 = 51,544.80 : x
  2. Step 2: Convert to fraction form
    53,464.80/80,216.40 = 51,544.80/x
  3. Step 3: Cross multiply
    53,464.80x = 80,216.40 × 51,544.80
  4. Step 4: Simplify right side
    53,464.80x = 4,134,738,294.72
  5. Step 5: Solve for x
    x = 4,134,738,294.72/53,464.80
  6. Step 6: Final answer
    x = 77,335.71

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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.