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Finding the Fourth Proportional to 88,227.64, 121,719.54 and 50,481.64

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Solution

The fourth proportional to 88,227.64, 121,719.54 and 50,481.64 is: 69,644.86

Step by Step Solution

  1. Step 1: Write the proportion equation
    88,227.64 : 121,719.54 = 50,481.64 : x
  2. Step 2: Convert to fraction form
    88,227.64/121,719.54 = 50,481.64/x
  3. Step 3: Cross multiply
    88,227.64x = 121,719.54 × 50,481.64
  4. Step 4: Simplify right side
    88,227.64x = 6,144,601,999.25
  5. Step 5: Solve for x
    x = 6,144,601,999.25/88,227.64
  6. Step 6: Final answer
    x = 69,644.86

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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.