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Finding the Fourth Proportional to 308,763.88, 426,094.16 and 167,451.88

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Solution

The fourth proportional to 308,763.88, 426,094.16 and 167,451.88 is: 231,083.59

Step by Step Solution

  1. Step 1: Write the proportion equation
    308,763.88 : 426,094.16 = 167,451.88 : x
  2. Step 2: Convert to fraction form
    308,763.88/426,094.16 = 167,451.88/x
  3. Step 3: Cross multiply
    308,763.88x = 426,094.16 × 167,451.88
  4. Step 4: Simplify right side
    308,763.88x = 71,350,266,246.53
  5. Step 5: Solve for x
    x = 71,350,266,246.53/308,763.88
  6. Step 6: Final answer
    x = 231,083.59

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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.