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Finding the Fourth Proportional to 167,057.78, 230,541.30 and 90,576.68

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Solution

The fourth proportional to 167,057.78, 230,541.30 and 90,576.68 is: 124,996.66

Step by Step Solution

  1. Step 1: Write the proportion equation
    167,057.78 : 230,541.30 = 90,576.68 : x
  2. Step 2: Convert to fraction form
    167,057.78/230,541.30 = 90,576.68/x
  3. Step 3: Cross multiply
    167,057.78x = 230,541.30 × 90,576.68
  4. Step 4: Simplify right side
    167,057.78x = 20,881,664,404.18
  5. Step 5: Solve for x
    x = 20,881,664,404.18/167,057.78
  6. Step 6: Final answer
    x = 124,996.66

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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.