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Finding the Fourth Proportional to 133,093.15, 183,689.63 and 84,644.56

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Solution

The fourth proportional to 133,093.15, 183,689.63 and 84,644.56 is: 116,822.90

Step by Step Solution

  1. Step 1: Write the proportion equation
    133,093.15 : 183,689.63 = 84,644.56 : x
  2. Step 2: Convert to fraction form
    133,093.15/183,689.63 = 84,644.56/x
  3. Step 3: Cross multiply
    133,093.15x = 183,689.63 × 84,644.56
  4. Step 4: Simplify right side
    133,093.15x = 15,548,327,660.30
  5. Step 5: Solve for x
    x = 15,548,327,660.30/133,093.15
  6. Step 6: Final answer
    x = 116,822.90

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Why These Related Problems?

These problems maintain the same ratio (1.38) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.