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Finding the Fourth Proportional to 167,963.60, 251,945.40 and 83,982.80

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Solution

The fourth proportional to 167,963.60, 251,945.40 and 83,982.80 is: 125,974.20

Step by Step Solution

  1. Step 1: Write the proportion equation
    167,963.60 : 251,945.40 = 83,982.80 : x
  2. Step 2: Convert to fraction form
    167,963.60/251,945.40 = 83,982.80/x
  3. Step 3: Cross multiply
    167,963.60x = 251,945.40 × 83,982.80
  4. Step 4: Simplify right side
    167,963.60x = 21,159,080,139.12
  5. Step 5: Solve for x
    x = 21,159,080,139.12/167,963.60
  6. Step 6: Final answer
    x = 125,974.20

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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.