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Finding the Fourth Proportional to 133,973.66, 200,772.86 and 100,672.49

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Solution

The fourth proportional to 133,973.66, 200,772.86 and 100,672.49 is: 150,867.74

Step by Step Solution

  1. Step 1: Write the proportion equation
    133,973.66 : 200,772.86 = 100,672.49 : x
  2. Step 2: Convert to fraction form
    133,973.66/200,772.86 = 100,672.49/x
  3. Step 3: Cross multiply
    133,973.66x = 200,772.86 × 100,672.49
  4. Step 4: Simplify right side
    133,973.66x = 20,212,303,739.19
  5. Step 5: Solve for x
    x = 20,212,303,739.19/133,973.66
  6. Step 6: Final answer
    x = 150,867.74

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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.