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Finding the Fourth Proportional to 178,950.31, 246,956.15 and 98,379.87

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Solution

The fourth proportional to 178,950.31, 246,956.15 and 98,379.87 is: 135,766.82

Step by Step Solution

  1. Step 1: Write the proportion equation
    178,950.31 : 246,956.15 = 98,379.87 : x
  2. Step 2: Convert to fraction form
    178,950.31/246,956.15 = 98,379.87/x
  3. Step 3: Cross multiply
    178,950.31x = 246,956.15 × 98,379.87
  4. Step 4: Simplify right side
    178,950.31x = 24,295,513,932.70
  5. Step 5: Solve for x
    x = 24,295,513,932.70/178,950.31
  6. Step 6: Final answer
    x = 135,766.82

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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.