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Finding the Fourth Proportional to 171,108.86, 256,577.64 and 52,764.83

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Solution

The fourth proportional to 171,108.86, 256,577.64 and 52,764.83 is: 79,120.83

Step by Step Solution

  1. Step 1: Write the proportion equation
    171,108.86 : 256,577.64 = 52,764.83 : x
  2. Step 2: Convert to fraction form
    171,108.86/256,577.64 = 52,764.83/x
  3. Step 3: Cross multiply
    171,108.86x = 256,577.64 × 52,764.83
  4. Step 4: Simplify right side
    171,108.86x = 13,538,275,556.40
  5. Step 5: Solve for x
    x = 13,538,275,556.40/171,108.86
  6. Step 6: Final answer
    x = 79,120.83

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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.