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Finding the Fourth Proportional to 332,407.70, 498,480.32 and 121,930.82

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Solution

The fourth proportional to 332,407.70, 498,480.32 and 121,930.82 is: 182,848.09

Step by Step Solution

  1. Step 1: Write the proportion equation
    332,407.70 : 498,480.32 = 121,930.82 : x
  2. Step 2: Convert to fraction form
    332,407.70/498,480.32 = 121,930.82/x
  3. Step 3: Cross multiply
    332,407.70x = 498,480.32 × 121,930.82
  4. Step 4: Simplify right side
    332,407.70x = 60,780,114,171.46
  5. Step 5: Solve for x
    x = 60,780,114,171.46/332,407.70
  6. Step 6: Final answer
    x = 182,848.09

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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.