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Finding the Fourth Proportional to 133,786.55, 200,713.28 and 94,420.55

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Solution

The fourth proportional to 133,786.55, 200,713.28 and 94,420.55 is: 141,654.43

Step by Step Solution

  1. Step 1: Write the proportion equation
    133,786.55 : 200,713.28 = 94,420.55 : x
  2. Step 2: Convert to fraction form
    133,786.55/200,713.28 = 94,420.55/x
  3. Step 3: Cross multiply
    133,786.55x = 200,713.28 × 94,420.55
  4. Step 4: Simplify right side
    133,786.55x = 18,951,458,319.58
  5. Step 5: Solve for x
    x = 18,951,458,319.58/133,786.55
  6. Step 6: Final answer
    x = 141,654.43

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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.