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Finding the Fourth Proportional to 229,698.49, 344,520.39 and 61,231.45

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Solution

The fourth proportional to 229,698.49, 344,520.39 and 61,231.45 is: 91,839.89

Step by Step Solution

  1. Step 1: Write the proportion equation
    229,698.49 : 344,520.39 = 61,231.45 : x
  2. Step 2: Convert to fraction form
    229,698.49/344,520.39 = 61,231.45/x
  3. Step 3: Cross multiply
    229,698.49x = 344,520.39 × 61,231.45
  4. Step 4: Simplify right side
    229,698.49x = 21,095,483,034.27
  5. Step 5: Solve for x
    x = 21,095,483,034.27/229,698.49
  6. Step 6: Final answer
    x = 91,839.89

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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.