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Finding the Fourth Proportional to 351,679.20, 527,518.80 and 114,964.80

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Solution

The fourth proportional to 351,679.20, 527,518.80 and 114,964.80 is: 172,447.20

Step by Step Solution

  1. Step 1: Write the proportion equation
    351,679.20 : 527,518.80 = 114,964.80 : x
  2. Step 2: Convert to fraction form
    351,679.20/527,518.80 = 114,964.80/x
  3. Step 3: Cross multiply
    351,679.20x = 527,518.80 × 114,964.80
  4. Step 4: Simplify right side
    351,679.20x = 60,646,093,338.24
  5. Step 5: Solve for x
    x = 60,646,093,338.24/351,679.20
  6. Step 6: Final answer
    x = 172,447.20

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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.