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Finding the Fourth Proportional to 258,147.66, 356,241.17 and 141,863.04

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Solution

The fourth proportional to 258,147.66, 356,241.17 and 141,863.04 is: 195,769.56

Step by Step Solution

  1. Step 1: Write the proportion equation
    258,147.66 : 356,241.17 = 141,863.04 : x
  2. Step 2: Convert to fraction form
    258,147.66/356,241.17 = 141,863.04/x
  3. Step 3: Cross multiply
    258,147.66x = 356,241.17 × 141,863.04
  4. Step 4: Simplify right side
    258,147.66x = 50,537,454,640.04
  5. Step 5: Solve for x
    x = 50,537,454,640.04/258,147.66
  6. Step 6: Final answer
    x = 195,769.56

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1.5x scale

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.