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Finding the Fourth Proportional to 303,527.85, 418,869.05 and 167,561.97

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Solution

The fourth proportional to 303,527.85, 418,869.05 and 167,561.97 is: 231,235.86

Step by Step Solution

  1. Step 1: Write the proportion equation
    303,527.85 : 418,869.05 = 167,561.97 : x
  2. Step 2: Convert to fraction form
    303,527.85/418,869.05 = 167,561.97/x
  3. Step 3: Cross multiply
    303,527.85x = 418,869.05 × 167,561.97
  4. Step 4: Simplify right side
    303,527.85x = 70,186,523,190.03
  5. Step 5: Solve for x
    x = 70,186,523,190.03/303,527.85
  6. Step 6: Final answer
    x = 231,235.86

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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.