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Finding the Fourth Proportional to 167,765.58, 231,440.18 and 99,743.98

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Solution

The fourth proportional to 167,765.58, 231,440.18 and 99,743.98 is: 137,601.32

Step by Step Solution

  1. Step 1: Write the proportion equation
    167,765.58 : 231,440.18 = 99,743.98 : x
  2. Step 2: Convert to fraction form
    167,765.58/231,440.18 = 99,743.98/x
  3. Step 3: Cross multiply
    167,765.58x = 231,440.18 × 99,743.98
  4. Step 4: Simplify right side
    167,765.58x = 23,084,764,685.12
  5. Step 5: Solve for x
    x = 23,084,764,685.12/167,765.58
  6. Step 6: Final answer
    x = 137,601.32

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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.