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Finding the Fourth Proportional to 167,496.40, 231,142.40 and 92,043.28

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Solution

The fourth proportional to 167,496.40, 231,142.40 and 92,043.28 is: 127,018.28

Step by Step Solution

  1. Step 1: Write the proportion equation
    167,496.40 : 231,142.40 = 92,043.28 : x
  2. Step 2: Convert to fraction form
    167,496.40/231,142.40 = 92,043.28/x
  3. Step 3: Cross multiply
    167,496.40x = 231,142.40 × 92,043.28
  4. Step 4: Simplify right side
    167,496.40x = 21,275,104,643.07
  5. Step 5: Solve for x
    x = 21,275,104,643.07/167,496.40
  6. Step 6: Final answer
    x = 127,018.28

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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.