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Finding the Fourth Proportional to 169,260.88, 254,043.60 and 90,442.48

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Solution

The fourth proportional to 169,260.88, 254,043.60 and 90,442.48 is: 135,745.09

Step by Step Solution

  1. Step 1: Write the proportion equation
    169,260.88 : 254,043.60 = 90,442.48 : x
  2. Step 2: Convert to fraction form
    169,260.88/254,043.60 = 90,442.48/x
  3. Step 3: Cross multiply
    169,260.88x = 254,043.60 × 90,442.48
  4. Step 4: Simplify right side
    169,260.88x = 22,976,333,212.13
  5. Step 5: Solve for x
    x = 22,976,333,212.13/169,260.88
  6. Step 6: Final answer
    x = 135,745.09

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Why These Related Problems?

These problems maintain the same ratio (1.50) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.