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Finding the Fourth Proportional to 159,273.84, 219,789.92 and 87,652.04

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Solution

The fourth proportional to 159,273.84, 219,789.92 and 87,652.04 is: 120,955.42

Step by Step Solution

  1. Step 1: Write the proportion equation
    159,273.84 : 219,789.92 = 87,652.04 : x
  2. Step 2: Convert to fraction form
    159,273.84/219,789.92 = 87,652.04/x
  3. Step 3: Cross multiply
    159,273.84x = 219,789.92 × 87,652.04
  4. Step 4: Simplify right side
    159,273.84x = 19,265,034,859.44
  5. Step 5: Solve for x
    x = 19,265,034,859.44/159,273.84
  6. Step 6: Final answer
    x = 120,955.42

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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.