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Finding the Fourth Proportional to 159,243.89, 238,902.75 and 54,062.86

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Solution

The fourth proportional to 159,243.89, 238,902.75 and 54,062.86 is: 81,106.82

Step by Step Solution

  1. Step 1: Write the proportion equation
    159,243.89 : 238,902.75 = 54,062.86 : x
  2. Step 2: Convert to fraction form
    159,243.89/238,902.75 = 54,062.86/x
  3. Step 3: Cross multiply
    159,243.89x = 238,902.75 × 54,062.86
  4. Step 4: Simplify right side
    159,243.89x = 12,915,765,777.55
  5. Step 5: Solve for x
    x = 12,915,765,777.55/159,243.89
  6. Step 6: Final answer
    x = 81,106.82

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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.