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Finding the Fourth Proportional to 236,392.60, 326,264.10 and 140,905.48

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Solution

The fourth proportional to 236,392.60, 326,264.10 and 140,905.48 is: 194,474.78

Step by Step Solution

  1. Step 1: Write the proportion equation
    236,392.60 : 326,264.10 = 140,905.48 : x
  2. Step 2: Convert to fraction form
    236,392.60/326,264.10 = 140,905.48/x
  3. Step 3: Cross multiply
    236,392.60x = 326,264.10 × 140,905.48
  4. Step 4: Simplify right side
    236,392.60x = 45,972,399,617.27
  5. Step 5: Solve for x
    x = 45,972,399,617.27/236,392.60
  6. Step 6: Final answer
    x = 194,474.78

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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.