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Finding the Fourth Proportional to 339,222.78, 509,067.42 and 117,606.78

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Solution

The fourth proportional to 339,222.78, 509,067.42 and 117,606.78 is: 176,491.04

Step by Step Solution

  1. Step 1: Write the proportion equation
    339,222.78 : 509,067.42 = 117,606.78 : x
  2. Step 2: Convert to fraction form
    339,222.78/509,067.42 = 117,606.78/x
  3. Step 3: Cross multiply
    339,222.78x = 509,067.42 × 117,606.78
  4. Step 4: Simplify right side
    339,222.78x = 59,869,780,069.11
  5. Step 5: Solve for x
    x = 59,869,780,069.11/339,222.78
  6. Step 6: Final answer
    x = 176,491.04

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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.