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Finding the Fourth Proportional to 265,451.16, 397,936.08 and 132,372.21

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Solution

The fourth proportional to 265,451.16, 397,936.08 and 132,372.21 is: 198,438.31

Step by Step Solution

  1. Step 1: Write the proportion equation
    265,451.16 : 397,936.08 = 132,372.21 : x
  2. Step 2: Convert to fraction form
    265,451.16/397,936.08 = 132,372.21/x
  3. Step 3: Cross multiply
    265,451.16x = 397,936.08 × 132,372.21
  4. Step 4: Simplify right side
    265,451.16x = 52,675,678,348.34
  5. Step 5: Solve for x
    x = 52,675,678,348.34/265,451.16
  6. Step 6: Final answer
    x = 198,438.31

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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.