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Finding the Fourth Proportional to 179,309.65, 247,447.31 and 98,736.98

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Solution

The fourth proportional to 179,309.65, 247,447.31 and 98,736.98 is: 136,257.03

Step by Step Solution

  1. Step 1: Write the proportion equation
    179,309.65 : 247,447.31 = 98,736.98 : x
  2. Step 2: Convert to fraction form
    179,309.65/247,447.31 = 98,736.98/x
  3. Step 3: Cross multiply
    179,309.65x = 247,447.31 × 98,736.98
  4. Step 4: Simplify right side
    179,309.65x = 24,432,199,850.93
  5. Step 5: Solve for x
    x = 24,432,199,850.93/179,309.65
  6. Step 6: Final answer
    x = 136,257.03

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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.