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Finding the Fourth Proportional to 133,066.40, 199,891.20 and 98,229.92

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Solution

The fourth proportional to 133,066.40, 199,891.20 and 98,229.92 is: 147,560.14

Step by Step Solution

  1. Step 1: Write the proportion equation
    133,066.40 : 199,891.20 = 98,229.92 : x
  2. Step 2: Convert to fraction form
    133,066.40/199,891.20 = 98,229.92/x
  3. Step 3: Cross multiply
    133,066.40x = 199,891.20 × 98,229.92
  4. Step 4: Simplify right side
    133,066.40x = 19,635,296,584.70
  5. Step 5: Solve for x
    x = 19,635,296,584.70/133,066.40
  6. Step 6: Final answer
    x = 147,560.14

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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.