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Finding the Fourth Proportional to 252,017.28, 347,783.04 and 138,839.04

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Solution

The fourth proportional to 252,017.28, 347,783.04 and 138,839.04 is: 191,597.43

Step by Step Solution

  1. Step 1: Write the proportion equation
    252,017.28 : 347,783.04 = 138,839.04 : x
  2. Step 2: Convert to fraction form
    252,017.28/347,783.04 = 138,839.04/x
  3. Step 3: Cross multiply
    252,017.28x = 347,783.04 × 138,839.04
  4. Step 4: Simplify right side
    252,017.28x = 48,285,863,401.88
  5. Step 5: Solve for x
    x = 48,285,863,401.88/252,017.28
  6. Step 6: Final answer
    x = 191,597.43

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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.