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Finding the Fourth Proportional to 133,445.73, 200,168.73 and 54,559.96

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Solution

The fourth proportional to 133,445.73, 200,168.73 and 54,559.96 is: 81,840.00

Step by Step Solution

  1. Step 1: Write the proportion equation
    133,445.73 : 200,168.73 = 54,559.96 : x
  2. Step 2: Convert to fraction form
    133,445.73/200,168.73 = 54,559.96/x
  3. Step 3: Cross multiply
    133,445.73x = 200,168.73 × 54,559.96
  4. Step 4: Simplify right side
    133,445.73x = 10,921,197,902.05
  5. Step 5: Solve for x
    x = 10,921,197,902.05/133,445.73
  6. Step 6: Final answer
    x = 81,840.00

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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.