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Finding the Fourth Proportional to 389,137.75, 583,157.94 and 183,753.27

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Solution

The fourth proportional to 389,137.75, 583,157.94 and 183,753.27 is: 275,370.81

Step by Step Solution

  1. Step 1: Write the proportion equation
    389,137.75 : 583,157.94 = 183,753.27 : x
  2. Step 2: Convert to fraction form
    389,137.75/583,157.94 = 183,753.27/x
  3. Step 3: Cross multiply
    389,137.75x = 583,157.94 × 183,753.27
  4. Step 4: Simplify right side
    389,137.75x = 107,157,178,169.39
  5. Step 5: Solve for x
    x = 107,157,178,169.39/389,137.75
  6. Step 6: Final answer
    x = 275,370.81

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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.