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Finding the Fourth Proportional to 201,939.48, 302,963.76 and 61,694.28

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Solution

The fourth proportional to 201,939.48, 302,963.76 and 61,694.28 is: 92,558.08

Step by Step Solution

  1. Step 1: Write the proportion equation
    201,939.48 : 302,963.76 = 61,694.28 : x
  2. Step 2: Convert to fraction form
    201,939.48/302,963.76 = 61,694.28/x
  3. Step 3: Cross multiply
    201,939.48x = 302,963.76 × 61,694.28
  4. Step 4: Simplify right side
    201,939.48x = 18,691,131,039.29
  5. Step 5: Solve for x
    x = 18,691,131,039.29/201,939.48
  6. Step 6: Final answer
    x = 92,558.08

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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.