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Finding the Fourth Proportional to 400,057.37, 600,145.73 and 147,318.44

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Solution

The fourth proportional to 400,057.37, 600,145.73 and 147,318.44 is: 220,999.63

Step by Step Solution

  1. Step 1: Write the proportion equation
    400,057.37 : 600,145.73 = 147,318.44 : x
  2. Step 2: Convert to fraction form
    400,057.37/600,145.73 = 147,318.44/x
  3. Step 3: Cross multiply
    400,057.37x = 600,145.73 × 147,318.44
  4. Step 4: Simplify right side
    400,057.37x = 88,412,528,978.94
  5. Step 5: Solve for x
    x = 88,412,528,978.94/400,057.37
  6. Step 6: Final answer
    x = 220,999.63

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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.