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Finding the Fourth Proportional to 238,940.70, 358,605.45 and 231,164.70

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Solution

The fourth proportional to 238,940.70, 358,605.45 and 231,164.70 is: 346,935.12

Step by Step Solution

  1. Step 1: Write the proportion equation
    238,940.70 : 358,605.45 = 231,164.70 : x
  2. Step 2: Convert to fraction form
    238,940.70/358,605.45 = 231,164.70/x
  3. Step 3: Cross multiply
    238,940.70x = 358,605.45 × 231,164.70
  4. Step 4: Simplify right side
    238,940.70x = 82,896,921,267.62
  5. Step 5: Solve for x
    x = 82,896,921,267.62/238,940.70
  6. Step 6: Final answer
    x = 346,935.12

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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.