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Finding the Fourth Proportional to 167,710.80, 251,128.80 and 132,427.20

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Solution

The fourth proportional to 167,710.80, 251,128.80 and 132,427.20 is: 198,295.42

Step by Step Solution

  1. Step 1: Write the proportion equation
    167,710.80 : 251,128.80 = 132,427.20 : x
  2. Step 2: Convert to fraction form
    167,710.80/251,128.80 = 132,427.20/x
  3. Step 3: Cross multiply
    167,710.80x = 251,128.80 × 132,427.20
  4. Step 4: Simplify right side
    167,710.80x = 33,256,283,823.36
  5. Step 5: Solve for x
    x = 33,256,283,823.36/167,710.80
  6. Step 6: Final answer
    x = 198,295.42

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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.