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Finding the Fourth Proportional to 303,561.55, 418,912.67 and 167,595.47

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Solution

The fourth proportional to 303,561.55, 418,912.67 and 167,595.47 is: 231,280.50

Step by Step Solution

  1. Step 1: Write the proportion equation
    303,561.55 : 418,912.67 = 167,595.47 : x
  2. Step 2: Convert to fraction form
    303,561.55/418,912.67 = 167,595.47/x
  3. Step 3: Cross multiply
    303,561.55x = 418,912.67 × 167,595.47
  4. Step 4: Simplify right side
    303,561.55x = 70,207,865,817.60
  5. Step 5: Solve for x
    x = 70,207,865,817.60/303,561.55
  6. Step 6: Final answer
    x = 231,280.50

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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.