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Finding the Fourth Proportional to 178,960.88, 268,535.52 and 79,189.92

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Solution

The fourth proportional to 178,960.88, 268,535.52 and 79,189.92 is: 118,826.56

Step by Step Solution

  1. Step 1: Write the proportion equation
    178,960.88 : 268,535.52 = 79,189.92 : x
  2. Step 2: Convert to fraction form
    178,960.88/268,535.52 = 79,189.92/x
  3. Step 3: Cross multiply
    178,960.88x = 268,535.52 × 79,189.92
  4. Step 4: Simplify right side
    178,960.88x = 21,265,306,345.96
  5. Step 5: Solve for x
    x = 21,265,306,345.96/178,960.88
  6. Step 6: Final answer
    x = 118,826.56

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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.