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Finding the Fourth Proportional to 167,761.08, 231,434.00 and 99,739.47

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Solution

The fourth proportional to 167,761.08, 231,434.00 and 99,739.47 is: 137,595.11

Step by Step Solution

  1. Step 1: Write the proportion equation
    167,761.08 : 231,434.00 = 99,739.47 : x
  2. Step 2: Convert to fraction form
    167,761.08/231,434.00 = 99,739.47/x
  3. Step 3: Cross multiply
    167,761.08x = 231,434.00 × 99,739.47
  4. Step 4: Simplify right side
    167,761.08x = 23,083,104,001.28
  5. Step 5: Solve for x
    x = 23,083,104,001.28/167,761.08
  6. Step 6: Final answer
    x = 137,595.11

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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.