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Finding the Fourth Proportional to 324,318.66, 486,699.48 and 113,956.62

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Solution

The fourth proportional to 324,318.66, 486,699.48 and 113,956.62 is: 171,012.76

Step by Step Solution

  1. Step 1: Write the proportion equation
    324,318.66 : 486,699.48 = 113,956.62 : x
  2. Step 2: Convert to fraction form
    324,318.66/486,699.48 = 113,956.62/x
  3. Step 3: Cross multiply
    324,318.66x = 486,699.48 × 113,956.62
  4. Step 4: Simplify right side
    324,318.66x = 55,462,627,696.56
  5. Step 5: Solve for x
    x = 55,462,627,696.56/324,318.66
  6. Step 6: Final answer
    x = 171,012.76

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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.