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Finding the Fourth Proportional to 354,640.60, 531,086.10 and 235,667.80

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Solution

The fourth proportional to 354,640.60, 531,086.10 and 235,667.80 is: 352,920.37

Step by Step Solution

  1. Step 1: Write the proportion equation
    354,640.60 : 531,086.10 = 235,667.80 : x
  2. Step 2: Convert to fraction form
    354,640.60/531,086.10 = 235,667.80/x
  3. Step 3: Cross multiply
    354,640.60x = 531,086.10 × 235,667.80
  4. Step 4: Simplify right side
    354,640.60x = 125,159,892,797.58
  5. Step 5: Solve for x
    x = 125,159,892,797.58/354,640.60
  6. Step 6: Final answer
    x = 352,920.37

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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.