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Finding the Fourth Proportional to 223,971.73, 336,004.85 and 74,203.45

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Solution

The fourth proportional to 223,971.73, 336,004.85 and 74,203.45 is: 111,320.83

Step by Step Solution

  1. Step 1: Write the proportion equation
    223,971.73 : 336,004.85 = 74,203.45 : x
  2. Step 2: Convert to fraction form
    223,971.73/336,004.85 = 74,203.45/x
  3. Step 3: Cross multiply
    223,971.73x = 336,004.85 × 74,203.45
  4. Step 4: Simplify right side
    223,971.73x = 24,932,719,086.73
  5. Step 5: Solve for x
    x = 24,932,719,086.73/223,971.73
  6. Step 6: Final answer
    x = 111,320.83

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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.