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Finding the Fourth Proportional to 136,161.38, 203,892.14 and 83,410.94

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Solution

The fourth proportional to 136,161.38, 203,892.14 and 83,410.94 is: 124,902.05

Step by Step Solution

  1. Step 1: Write the proportion equation
    136,161.38 : 203,892.14 = 83,410.94 : x
  2. Step 2: Convert to fraction form
    136,161.38/203,892.14 = 83,410.94/x
  3. Step 3: Cross multiply
    136,161.38x = 203,892.14 × 83,410.94
  4. Step 4: Simplify right side
    136,161.38x = 17,006,835,056.01
  5. Step 5: Solve for x
    x = 17,006,835,056.01/136,161.38
  6. Step 6: Final answer
    x = 124,902.05

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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.