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Finding the Fourth Proportional to 320,697.88, 481,041.78 and 110,337.64

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Solution

The fourth proportional to 320,697.88, 481,041.78 and 110,337.64 is: 165,504.73

Step by Step Solution

  1. Step 1: Write the proportion equation
    320,697.88 : 481,041.78 = 110,337.64 : x
  2. Step 2: Convert to fraction form
    320,697.88/481,041.78 = 110,337.64/x
  3. Step 3: Cross multiply
    320,697.88x = 481,041.78 × 110,337.64
  4. Step 4: Simplify right side
    320,697.88x = 53,077,014,746.60
  5. Step 5: Solve for x
    x = 53,077,014,746.60/320,697.88
  6. Step 6: Final answer
    x = 165,504.73

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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.