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Finding the Fourth Proportional to 171,411.86, 257,134.80 and 63,369.55

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Solution

The fourth proportional to 171,411.86, 257,134.80 and 63,369.55 is: 95,060.61

Step by Step Solution

  1. Step 1: Write the proportion equation
    171,411.86 : 257,134.80 = 63,369.55 : x
  2. Step 2: Convert to fraction form
    171,411.86/257,134.80 = 63,369.55/x
  3. Step 3: Cross multiply
    171,411.86x = 257,134.80 × 63,369.55
  4. Step 4: Simplify right side
    171,411.86x = 16,294,515,438.09
  5. Step 5: Solve for x
    x = 16,294,515,438.09/171,411.86
  6. Step 6: Final answer
    x = 95,060.61

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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.