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Finding the Fourth Proportional to 230,312.44, 345,398.91 and 80,524.81

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Solution

The fourth proportional to 230,312.44, 345,398.91 and 80,524.81 is: 120,762.83

Step by Step Solution

  1. Step 1: Write the proportion equation
    230,312.44 : 345,398.91 = 80,524.81 : x
  2. Step 2: Convert to fraction form
    230,312.44/345,398.91 = 80,524.81/x
  3. Step 3: Cross multiply
    230,312.44x = 345,398.91 × 80,524.81
  4. Step 4: Simplify right side
    230,312.44x = 27,813,181,601.96
  5. Step 5: Solve for x
    x = 27,813,181,601.96/230,312.44
  6. Step 6: Final answer
    x = 120,762.83

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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.