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Finding the Fourth Proportional to 167,179.70, 230,663.35 and 99,140.11

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Solution

The fourth proportional to 167,179.70, 230,663.35 and 99,140.11 is: 136,786.88

Step by Step Solution

  1. Step 1: Write the proportion equation
    167,179.70 : 230,663.35 = 99,140.11 : x
  2. Step 2: Convert to fraction form
    167,179.70/230,663.35 = 99,140.11/x
  3. Step 3: Cross multiply
    167,179.70x = 230,663.35 × 99,140.11
  4. Step 4: Simplify right side
    167,179.70x = 22,867,989,891.97
  5. Step 5: Solve for x
    x = 22,867,989,891.97/167,179.70
  6. Step 6: Final answer
    x = 136,786.88

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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.