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Finding the Fourth Proportional to 137,357.40, 206,035.38 and 43,861.08

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Solution

The fourth proportional to 137,357.40, 206,035.38 and 43,861.08 is: 65,791.39

Step by Step Solution

  1. Step 1: Write the proportion equation
    137,357.40 : 206,035.38 = 43,861.08 : x
  2. Step 2: Convert to fraction form
    137,357.40/206,035.38 = 43,861.08/x
  3. Step 3: Cross multiply
    137,357.40x = 206,035.38 × 43,861.08
  4. Step 4: Simplify right side
    137,357.40x = 9,036,934,285.01
  5. Step 5: Solve for x
    x = 9,036,934,285.01/137,357.40
  6. Step 6: Final answer
    x = 65,791.39

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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.