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Finding the Fourth Proportional to 234,971.20, 352,470.39 and 66,477.42

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Solution

The fourth proportional to 234,971.20, 352,470.39 and 66,477.42 is: 99,719.97

Step by Step Solution

  1. Step 1: Write the proportion equation
    234,971.20 : 352,470.39 = 66,477.42 : x
  2. Step 2: Convert to fraction form
    234,971.20/352,470.39 = 66,477.42/x
  3. Step 3: Cross multiply
    234,971.20x = 352,470.39 × 66,477.42
  4. Step 4: Simplify right side
    234,971.20x = 23,431,320,058.85
  5. Step 5: Solve for x
    x = 23,431,320,058.85/234,971.20
  6. Step 6: Final answer
    x = 99,719.97

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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.