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Finding the Fourth Proportional to 171,508.56, 236,764.08 and 120,564.96

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Solution

The fourth proportional to 171,508.56, 236,764.08 and 120,564.96 is: 166,437.48

Step by Step Solution

  1. Step 1: Write the proportion equation
    171,508.56 : 236,764.08 = 120,564.96 : x
  2. Step 2: Convert to fraction form
    171,508.56/236,764.08 = 120,564.96/x
  3. Step 3: Cross multiply
    171,508.56x = 236,764.08 × 120,564.96
  4. Step 4: Simplify right side
    171,508.56x = 28,545,451,834.64
  5. Step 5: Solve for x
    x = 28,545,451,834.64/171,508.56
  6. Step 6: Final answer
    x = 166,437.48

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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.