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Finding the Fourth Proportional to 117,238.55, 161,789.36 and 63,523.58

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Solution

The fourth proportional to 117,238.55, 161,789.36 and 63,523.58 is: 87,662.62

Step by Step Solution

  1. Step 1: Write the proportion equation
    117,238.55 : 161,789.36 = 63,523.58 : x
  2. Step 2: Convert to fraction form
    117,238.55/161,789.36 = 63,523.58/x
  3. Step 3: Cross multiply
    117,238.55x = 161,789.36 × 63,523.58
  4. Step 4: Simplify right side
    117,238.55x = 10,277,438,226.54
  5. Step 5: Solve for x
    x = 10,277,438,226.54/117,238.55
  6. Step 6: Final answer
    x = 87,662.62

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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.