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Finding the Fourth Proportional to 339,422.04, 509,328.90 and 181,738.44

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Solution

The fourth proportional to 339,422.04, 509,328.90 and 181,738.44 is: 272,712.52

Step by Step Solution

  1. Step 1: Write the proportion equation
    339,422.04 : 509,328.90 = 181,738.44 : x
  2. Step 2: Convert to fraction form
    339,422.04/509,328.90 = 181,738.44/x
  3. Step 3: Cross multiply
    339,422.04x = 509,328.90 × 181,738.44
  4. Step 4: Simplify right side
    339,422.04x = 92,564,639,732.92
  5. Step 5: Solve for x
    x = 92,564,639,732.92/339,422.04
  6. Step 6: Final answer
    x = 272,712.52

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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.