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Finding the Fourth Proportional to 169,418.78, 233,825.91 and 93,991.58

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Solution

The fourth proportional to 169,418.78, 233,825.91 and 93,991.58 is: 129,723.91

Step by Step Solution

  1. Step 1: Write the proportion equation
    169,418.78 : 233,825.91 = 93,991.58 : x
  2. Step 2: Convert to fraction form
    169,418.78/233,825.91 = 93,991.58/x
  3. Step 3: Cross multiply
    169,418.78x = 233,825.91 × 93,991.58
  4. Step 4: Simplify right side
    169,418.78x = 21,977,666,725.84
  5. Step 5: Solve for x
    x = 21,977,666,725.84/169,418.78
  6. Step 6: Final answer
    x = 129,723.91

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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.