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Finding the Fourth Proportional to 133,740.45, 200,641.39 and 44,991.65

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Solution

The fourth proportional to 133,740.45, 200,641.39 and 44,991.65 is: 67,497.81

Step by Step Solution

  1. Step 1: Write the proportion equation
    133,740.45 : 200,641.39 = 44,991.65 : x
  2. Step 2: Convert to fraction form
    133,740.45/200,641.39 = 44,991.65/x
  3. Step 3: Cross multiply
    133,740.45x = 200,641.39 × 44,991.65
  4. Step 4: Simplify right side
    133,740.45x = 9,027,187,583.52
  5. Step 5: Solve for x
    x = 9,027,187,583.52/133,740.45
  6. Step 6: Final answer
    x = 67,497.81

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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.