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Finding the Fourth Proportional to 133,691.06, 200,581.26 and 43,737.90

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Solution

The fourth proportional to 133,691.06, 200,581.26 and 43,737.90 is: 65,621.46

Step by Step Solution

  1. Step 1: Write the proportion equation
    133,691.06 : 200,581.26 = 43,737.90 : x
  2. Step 2: Convert to fraction form
    133,691.06/200,581.26 = 43,737.90/x
  3. Step 3: Cross multiply
    133,691.06x = 200,581.26 × 43,737.90
  4. Step 4: Simplify right side
    133,691.06x = 8,773,003,091.75
  5. Step 5: Solve for x
    x = 8,773,003,091.75/133,691.06
  6. Step 6: Final answer
    x = 65,621.46

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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.