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Finding the Fourth Proportional to 244,321.65, 366,500.70 and 86,529.60

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Solution

The fourth proportional to 244,321.65, 366,500.70 and 86,529.60 is: 129,800.85

Step by Step Solution

  1. Step 1: Write the proportion equation
    244,321.65 : 366,500.70 = 86,529.60 : x
  2. Step 2: Convert to fraction form
    244,321.65/366,500.70 = 86,529.60/x
  3. Step 3: Cross multiply
    244,321.65x = 366,500.70 × 86,529.60
  4. Step 4: Simplify right side
    244,321.65x = 31,713,158,970.72
  5. Step 5: Solve for x
    x = 31,713,158,970.72/244,321.65
  6. Step 6: Final answer
    x = 129,800.85

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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.