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Finding the Fourth Proportional to 237,942.62, 356,800.94 and 138,133.48

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Solution

The fourth proportional to 237,942.62, 356,800.94 and 138,133.48 is: 207,134.62

Step by Step Solution

  1. Step 1: Write the proportion equation
    237,942.62 : 356,800.94 = 138,133.48 : x
  2. Step 2: Convert to fraction form
    237,942.62/356,800.94 = 138,133.48/x
  3. Step 3: Cross multiply
    237,942.62x = 356,800.94 × 138,133.48
  4. Step 4: Simplify right side
    237,942.62x = 49,286,153,034.80
  5. Step 5: Solve for x
    x = 49,286,153,034.80/237,942.62
  6. Step 6: Final answer
    x = 207,134.62

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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.