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Finding the Fourth Proportional to 445,164.13, 667,740.37 and 108,203.81

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Solution

The fourth proportional to 445,164.13, 667,740.37 and 108,203.81 is: 162,304.30

Step by Step Solution

  1. Step 1: Write the proportion equation
    445,164.13 : 667,740.37 = 108,203.81 : x
  2. Step 2: Convert to fraction form
    445,164.13/667,740.37 = 108,203.81/x
  3. Step 3: Cross multiply
    445,164.13x = 667,740.37 × 108,203.81
  4. Step 4: Simplify right side
    445,164.13x = 72,252,052,124.81
  5. Step 5: Solve for x
    x = 72,252,052,124.81/445,164.13
  6. Step 6: Final answer
    x = 162,304.30

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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.