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Finding the Fourth Proportional to 167,012, 230,476.56 and 91,561.04

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Solution

The fourth proportional to 167,012, 230,476.56 and 91,561.04 is: 126,354.24

Step by Step Solution

  1. Step 1: Write the proportion equation
    167,012 : 230,476.56 = 91,561.04 : x
  2. Step 2: Convert to fraction form
    167,012/230,476.56 = 91,561.04/x
  3. Step 3: Cross multiply
    167,012x = 230,476.56 × 91,561.04
  4. Step 4: Simplify right side
    167,012x = 21,102,673,529.22
  5. Step 5: Solve for x
    x = 21,102,673,529.22/167,012
  6. Step 6: Final answer
    x = 126,354.24

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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.