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Finding the Fourth Proportional to 57,151.51, 85,723.96 and 17,169.63

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Solution

The fourth proportional to 57,151.51, 85,723.96 and 17,169.63 is: 25,753.45

Step by Step Solution

  1. Step 1: Write the proportion equation
    57,151.51 : 85,723.96 = 17,169.63 : x
  2. Step 2: Convert to fraction form
    57,151.51/85,723.96 = 17,169.63/x
  3. Step 3: Cross multiply
    57,151.51x = 85,723.96 × 17,169.63
  4. Step 4: Simplify right side
    57,151.51x = 1,471,848,759.16
  5. Step 5: Solve for x
    x = 1,471,848,759.16/57,151.51
  6. Step 6: Final answer
    x = 25,753.45

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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.