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Finding the Fourth Proportional to 57,922.48, 79,891.80 and 53,157.82

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Solution

The fourth proportional to 57,922.48, 79,891.80 and 53,157.82 is: 73,319.96

Step by Step Solution

  1. Step 1: Write the proportion equation
    57,922.48 : 79,891.80 = 53,157.82 : x
  2. Step 2: Convert to fraction form
    57,922.48/79,891.80 = 53,157.82/x
  3. Step 3: Cross multiply
    57,922.48x = 79,891.80 × 53,157.82
  4. Step 4: Simplify right side
    57,922.48x = 4,246,873,923.88
  5. Step 5: Solve for x
    x = 4,246,873,923.88/57,922.48
  6. Step 6: Final answer
    x = 73,319.96

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Why These Related Problems?

These problems maintain the same ratio (1.38) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.