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Finding the Fourth Proportional to 73,690.80, 101,693.60 and 41,860

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Solution

The fourth proportional to 73,690.80, 101,693.60 and 41,860 is: 57,766.97

Step by Step Solution

  1. Step 1: Write the proportion equation
    73,690.80 : 101,693.60 = 41,860 : x
  2. Step 2: Convert to fraction form
    73,690.80/101,693.60 = 41,860/x
  3. Step 3: Cross multiply
    73,690.80x = 101,693.60 × 41,860
  4. Step 4: Simplify right side
    73,690.80x = 4,256,894,096.00
  5. Step 5: Solve for x
    x = 4,256,894,096.00/73,690.80
  6. Step 6: Final answer
    x = 57,766.97

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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.