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Finding the Fourth Proportional to 150,520.43, 225,768.85 and 42,445.43

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Solution

The fourth proportional to 150,520.43, 225,768.85 and 42,445.43 is: 63,664.81

Step by Step Solution

  1. Step 1: Write the proportion equation
    150,520.43 : 225,768.85 = 42,445.43 : x
  2. Step 2: Convert to fraction form
    150,520.43/225,768.85 = 42,445.43/x
  3. Step 3: Cross multiply
    150,520.43x = 225,768.85 × 42,445.43
  4. Step 4: Simplify right side
    150,520.43x = 9,582,854,683.90
  5. Step 5: Solve for x
    x = 9,582,854,683.90/150,520.43
  6. Step 6: Final answer
    x = 63,664.81

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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.