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Finding the Fourth Proportional to 52,380.38, 72,102.38 and 45,654.34

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Solution

The fourth proportional to 52,380.38, 72,102.38 and 45,654.34 is: 62,843.88

Step by Step Solution

  1. Step 1: Write the proportion equation
    52,380.38 : 72,102.38 = 45,654.34 : x
  2. Step 2: Convert to fraction form
    52,380.38/72,102.38 = 45,654.34/x
  3. Step 3: Cross multiply
    52,380.38x = 72,102.38 × 45,654.34
  4. Step 4: Simplify right side
    52,380.38x = 3,291,786,571.33
  5. Step 5: Solve for x
    x = 3,291,786,571.33/52,380.38
  6. Step 6: Final answer
    x = 62,843.88

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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.