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Finding the Fourth Proportional to 433,399.80, 649,905.30 and 167,071.80

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Solution

The fourth proportional to 433,399.80, 649,905.30 and 167,071.80 is: 250,532.76

Step by Step Solution

  1. Step 1: Write the proportion equation
    433,399.80 : 649,905.30 = 167,071.80 : x
  2. Step 2: Convert to fraction form
    433,399.80/649,905.30 = 167,071.80/x
  3. Step 3: Cross multiply
    433,399.80x = 649,905.30 × 167,071.80
  4. Step 4: Simplify right side
    433,399.80x = 108,580,848,300.54
  5. Step 5: Solve for x
    x = 108,580,848,300.54/433,399.80
  6. Step 6: Final answer
    x = 250,532.76

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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.