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Finding the Fourth Proportional to 159,138.44, 238,735.92 and 52,528.28

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Solution

The fourth proportional to 159,138.44, 238,735.92 and 52,528.28 is: 78,801.75

Step by Step Solution

  1. Step 1: Write the proportion equation
    159,138.44 : 238,735.92 = 52,528.28 : x
  2. Step 2: Convert to fraction form
    159,138.44/238,735.92 = 52,528.28/x
  3. Step 3: Cross multiply
    159,138.44x = 238,735.92 × 52,528.28
  4. Step 4: Simplify right side
    159,138.44x = 12,540,387,251.82
  5. Step 5: Solve for x
    x = 12,540,387,251.82/159,138.44
  6. Step 6: Final answer
    x = 78,801.75

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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.