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Finding the Fourth Proportional to 167,460.52, 231,099.78 and 90,978.84

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Solution

The fourth proportional to 167,460.52, 231,099.78 and 90,978.84 is: 125,553.11

Step by Step Solution

  1. Step 1: Write the proportion equation
    167,460.52 : 231,099.78 = 90,978.84 : x
  2. Step 2: Convert to fraction form
    167,460.52/231,099.78 = 90,978.84/x
  3. Step 3: Cross multiply
    167,460.52x = 231,099.78 × 90,978.84
  4. Step 4: Simplify right side
    167,460.52x = 21,025,189,908.66
  5. Step 5: Solve for x
    x = 21,025,189,908.66/167,460.52
  6. Step 6: Final answer
    x = 125,553.11

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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.