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Finding the Fourth Proportional to 167,383.43, 230,989.13 and 91,931.93

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Solution

The fourth proportional to 167,383.43, 230,989.13 and 91,931.93 is: 126,866.06

Step by Step Solution

  1. Step 1: Write the proportion equation
    167,383.43 : 230,989.13 = 91,931.93 : x
  2. Step 2: Convert to fraction form
    167,383.43/230,989.13 = 91,931.93/x
  3. Step 3: Cross multiply
    167,383.43x = 230,989.13 × 91,931.93
  4. Step 4: Simplify right side
    167,383.43x = 21,235,276,070.26
  5. Step 5: Solve for x
    x = 21,235,276,070.26/167,383.43
  6. Step 6: Final answer
    x = 126,866.06

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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.