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Finding the Fourth Proportional to 302,521.56, 453,680.20 and 112,942.68

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Solution

The fourth proportional to 302,521.56, 453,680.20 and 112,942.68 is: 169,375.89

Step by Step Solution

  1. Step 1: Write the proportion equation
    302,521.56 : 453,680.20 = 112,942.68 : x
  2. Step 2: Convert to fraction form
    302,521.56/453,680.20 = 112,942.68/x
  3. Step 3: Cross multiply
    302,521.56x = 453,680.20 × 112,942.68
  4. Step 4: Simplify right side
    302,521.56x = 51,239,857,650.94
  5. Step 5: Solve for x
    x = 51,239,857,650.94/302,521.56
  6. Step 6: Final answer
    x = 169,375.89

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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.