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Finding the Fourth Proportional to 244,378.65, 366,586.20 and 86,586.60

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Solution

The fourth proportional to 244,378.65, 366,586.20 and 86,586.60 is: 129,886.36

Step by Step Solution

  1. Step 1: Write the proportion equation
    244,378.65 : 366,586.20 = 86,586.60 : x
  2. Step 2: Convert to fraction form
    244,378.65/366,586.20 = 86,586.60/x
  3. Step 3: Cross multiply
    244,378.65x = 366,586.20 × 86,586.60
  4. Step 4: Simplify right side
    244,378.65x = 31,741,452,664.92
  5. Step 5: Solve for x
    x = 31,741,452,664.92/244,378.65
  6. Step 6: Final answer
    x = 129,886.36

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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.