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Finding the Fourth Proportional to 169,418.28, 233,825.22 and 93,991.08

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Solution

The fourth proportional to 169,418.28, 233,825.22 and 93,991.08 is: 129,723.22

Step by Step Solution

  1. Step 1: Write the proportion equation
    169,418.28 : 233,825.22 = 93,991.08 : x
  2. Step 2: Convert to fraction form
    169,418.28/233,825.22 = 93,991.08/x
  3. Step 3: Cross multiply
    169,418.28x = 233,825.22 × 93,991.08
  4. Step 4: Simplify right side
    169,418.28x = 21,977,484,959.04
  5. Step 5: Solve for x
    x = 21,977,484,959.04/169,418.28
  6. Step 6: Final answer
    x = 129,723.22

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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.