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Finding the Fourth Proportional to 303,516.42, 418,856.06 and 167,550.47

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Solution

The fourth proportional to 303,516.42, 418,856.06 and 167,550.47 is: 231,221.54

Step by Step Solution

  1. Step 1: Write the proportion equation
    303,516.42 : 418,856.06 = 167,550.47 : x
  2. Step 2: Convert to fraction form
    303,516.42/418,856.06 = 167,550.47/x
  3. Step 3: Cross multiply
    303,516.42x = 418,856.06 × 167,550.47
  4. Step 4: Simplify right side
    303,516.42x = 70,179,531,966.72
  5. Step 5: Solve for x
    x = 70,179,531,966.72/303,516.42
  6. Step 6: Final answer
    x = 231,221.54

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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.