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Finding the Fourth Proportional to 332,154, 458,372.52 and 198,018

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Solution

The fourth proportional to 332,154, 458,372.52 and 198,018 is: 273,264.84

Step by Step Solution

  1. Step 1: Write the proportion equation
    332,154 : 458,372.52 = 198,018 : x
  2. Step 2: Convert to fraction form
    332,154/458,372.52 = 198,018/x
  3. Step 3: Cross multiply
    332,154x = 458,372.52 × 198,018
  4. Step 4: Simplify right side
    332,154x = 90,766,009,665.36
  5. Step 5: Solve for x
    x = 90,766,009,665.36/332,154
  6. Step 6: Final answer
    x = 273,264.84

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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.