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Finding the Fourth Proportional to 481,462.68, 721,751.76 and 165,844.56

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Solution

The fourth proportional to 481,462.68, 721,751.76 and 165,844.56 is: 248,614.50

Step by Step Solution

  1. Step 1: Write the proportion equation
    481,462.68 : 721,751.76 = 165,844.56 : x
  2. Step 2: Convert to fraction form
    481,462.68/721,751.76 = 165,844.56/x
  3. Step 3: Cross multiply
    481,462.68x = 721,751.76 × 165,844.56
  4. Step 4: Simplify right side
    481,462.68x = 119,698,603,066.43
  5. Step 5: Solve for x
    x = 119,698,603,066.43/481,462.68
  6. Step 6: Final answer
    x = 248,614.50

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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.