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Finding the Fourth Proportional to 312,149.33, 430,767.22 and 168,909.38

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Solution

The fourth proportional to 312,149.33, 430,767.22 and 168,909.38 is: 233,095.56

Step by Step Solution

  1. Step 1: Write the proportion equation
    312,149.33 : 430,767.22 = 168,909.38 : x
  2. Step 2: Convert to fraction form
    312,149.33/430,767.22 = 168,909.38/x
  3. Step 3: Cross multiply
    312,149.33x = 430,767.22 × 168,909.38
  4. Step 4: Simplify right side
    312,149.33x = 72,760,621,900.69
  5. Step 5: Solve for x
    x = 72,760,621,900.69/312,149.33
  6. Step 6: Final answer
    x = 233,095.56

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These problems maintain the same ratio (1.38) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.