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Finding the Fourth Proportional to 135,637.89, 203,482.35 and 54,591.11

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Solution

The fourth proportional to 135,637.89, 203,482.35 and 54,591.11 is: 81,896.93

Step by Step Solution

  1. Step 1: Write the proportion equation
    135,637.89 : 203,482.35 = 54,591.11 : x
  2. Step 2: Convert to fraction form
    135,637.89/203,482.35 = 54,591.11/x
  3. Step 3: Cross multiply
    135,637.89x = 203,482.35 × 54,591.11
  4. Step 4: Simplify right side
    135,637.89x = 11,108,327,351.91
  5. Step 5: Solve for x
    x = 11,108,327,351.91/135,637.89
  6. Step 6: Final answer
    x = 81,896.93

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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.