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Finding the Fourth Proportional to 168,791.52, 252,953.76 and 143,700.96

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Solution

The fourth proportional to 168,791.52, 252,953.76 and 143,700.96 is: 215,352.63

Step by Step Solution

  1. Step 1: Write the proportion equation
    168,791.52 : 252,953.76 = 143,700.96 : x
  2. Step 2: Convert to fraction form
    168,791.52/252,953.76 = 143,700.96/x
  3. Step 3: Cross multiply
    168,791.52x = 252,953.76 × 143,700.96
  4. Step 4: Simplify right side
    168,791.52x = 36,349,698,147.61
  5. Step 5: Solve for x
    x = 36,349,698,147.61/168,791.52
  6. Step 6: Final answer
    x = 215,352.63

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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.