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Finding the Fourth Proportional to 332,187.96, 498,456.89 and 145,330.68

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Solution

The fourth proportional to 332,187.96, 498,456.89 and 145,330.68 is: 218,072.56

Step by Step Solution

  1. Step 1: Write the proportion equation
    332,187.96 : 498,456.89 = 145,330.68 : x
  2. Step 2: Convert to fraction form
    332,187.96/498,456.89 = 145,330.68/x
  3. Step 3: Cross multiply
    332,187.96x = 498,456.89 × 145,330.68
  4. Step 4: Simplify right side
    332,187.96x = 72,441,078,774.39
  5. Step 5: Solve for x
    x = 72,441,078,774.39/332,187.96
  6. Step 6: Final answer
    x = 218,072.56

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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.