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Finding the Fourth Proportional to 244,609.90, 366,979.65 and 86,821.90

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Solution

The fourth proportional to 244,609.90, 366,979.65 and 86,821.90 is: 130,255.85

Step by Step Solution

  1. Step 1: Write the proportion equation
    244,609.90 : 366,979.65 = 86,821.90 : x
  2. Step 2: Convert to fraction form
    244,609.90/366,979.65 = 86,821.90/x
  3. Step 3: Cross multiply
    244,609.90x = 366,979.65 × 86,821.90
  4. Step 4: Simplify right side
    244,609.90x = 31,861,870,474.34
  5. Step 5: Solve for x
    x = 31,861,870,474.34/244,609.90
  6. Step 6: Final answer
    x = 130,255.85

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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.