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Finding the Fourth Proportional to 367,722.72, 551,447.84 and 131,002.56

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Solution

The fourth proportional to 367,722.72, 551,447.84 and 131,002.56 is: 196,455.30

Step by Step Solution

  1. Step 1: Write the proportion equation
    367,722.72 : 551,447.84 = 131,002.56 : x
  2. Step 2: Convert to fraction form
    367,722.72/551,447.84 = 131,002.56/x
  3. Step 3: Cross multiply
    367,722.72x = 551,447.84 × 131,002.56
  4. Step 4: Simplify right side
    367,722.72x = 72,241,078,746.47
  5. Step 5: Solve for x
    x = 72,241,078,746.47/367,722.72
  6. Step 6: Final answer
    x = 196,455.30

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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.