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Finding the Fourth Proportional to 351,754.42, 527,680.80 and 115,049.92

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Solution

The fourth proportional to 351,754.42, 527,680.80 and 115,049.92 is: 172,590.96

Step by Step Solution

  1. Step 1: Write the proportion equation
    351,754.42 : 527,680.80 = 115,049.92 : x
  2. Step 2: Convert to fraction form
    351,754.42/527,680.80 = 115,049.92/x
  3. Step 3: Cross multiply
    351,754.42x = 527,680.80 × 115,049.92
  4. Step 4: Simplify right side
    351,754.42x = 60,709,633,825.54
  5. Step 5: Solve for x
    x = 60,709,633,825.54/351,754.42
  6. Step 6: Final answer
    x = 172,590.96

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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.