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Finding the Fourth Proportional to 220,090.25, 303,724.55 and 119,488.25

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Solution

The fourth proportional to 220,090.25, 303,724.55 and 119,488.25 is: 164,893.79

Step by Step Solution

  1. Step 1: Write the proportion equation
    220,090.25 : 303,724.55 = 119,488.25 : x
  2. Step 2: Convert to fraction form
    220,090.25/303,724.55 = 119,488.25/x
  3. Step 3: Cross multiply
    220,090.25x = 303,724.55 × 119,488.25
  4. Step 4: Simplify right side
    220,090.25x = 36,291,514,961.54
  5. Step 5: Solve for x
    x = 36,291,514,961.54/220,090.25
  6. Step 6: Final answer
    x = 164,893.79

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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.