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Finding the Fourth Proportional to 252,956.10, 379,871.55 and 134,858.10

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Solution

The fourth proportional to 252,956.10, 379,871.55 and 134,858.10 is: 202,520.34

Step by Step Solution

  1. Step 1: Write the proportion equation
    252,956.10 : 379,871.55 = 134,858.10 : x
  2. Step 2: Convert to fraction form
    252,956.10/379,871.55 = 134,858.10/x
  3. Step 3: Cross multiply
    252,956.10x = 379,871.55 × 134,858.10
  4. Step 4: Simplify right side
    252,956.10x = 51,228,755,477.06
  5. Step 5: Solve for x
    x = 51,228,755,477.06/252,956.10
  6. Step 6: Final answer
    x = 202,520.34

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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.