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Finding the Fourth Proportional to 169,128.45, 233,394.31 and 92,649.06

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Solution

The fourth proportional to 169,128.45, 233,394.31 and 92,649.06 is: 127,854.09

Step by Step Solution

  1. Step 1: Write the proportion equation
    169,128.45 : 233,394.31 = 92,649.06 : x
  2. Step 2: Convert to fraction form
    169,128.45/233,394.31 = 92,649.06/x
  3. Step 3: Cross multiply
    169,128.45x = 233,394.31 × 92,649.06
  4. Step 4: Simplify right side
    169,128.45x = 21,623,763,546.66
  5. Step 5: Solve for x
    x = 21,623,763,546.66/169,128.45
  6. Step 6: Final answer
    x = 127,854.09

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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.