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Finding the Fourth Proportional to 179,678.80, 268,999.80 and 161,016.40

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Solution

The fourth proportional to 179,678.80, 268,999.80 and 161,016.40 is: 241,060.04

Step by Step Solution

  1. Step 1: Write the proportion equation
    179,678.80 : 268,999.80 = 161,016.40 : x
  2. Step 2: Convert to fraction form
    179,678.80/268,999.80 = 161,016.40/x
  3. Step 3: Cross multiply
    179,678.80x = 268,999.80 × 161,016.40
  4. Step 4: Simplify right side
    179,678.80x = 43,313,379,396.72
  5. Step 5: Solve for x
    x = 43,313,379,396.72/179,678.80
  6. Step 6: Final answer
    x = 241,060.04

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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.