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Finding the Fourth Proportional to 167,442, 231,070.06 and 91,995.36

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Solution

The fourth proportional to 167,442, 231,070.06 and 91,995.36 is: 126,953.65

Step by Step Solution

  1. Step 1: Write the proportion equation
    167,442 : 231,070.06 = 91,995.36 : x
  2. Step 2: Convert to fraction form
    167,442/231,070.06 = 91,995.36/x
  3. Step 3: Cross multiply
    167,442x = 231,070.06 × 91,995.36
  4. Step 4: Simplify right side
    167,442x = 21,257,373,354.92
  5. Step 5: Solve for x
    x = 21,257,373,354.92/167,442
  6. Step 6: Final answer
    x = 126,953.65

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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.