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Finding the Fourth Proportional to 339,884.04, 509,826 and 161,851.26

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Solution

The fourth proportional to 339,884.04, 509,826 and 161,851.26 is: 242,776.86

Step by Step Solution

  1. Step 1: Write the proportion equation
    339,884.04 : 509,826 = 161,851.26 : x
  2. Step 2: Convert to fraction form
    339,884.04/509,826 = 161,851.26/x
  3. Step 3: Cross multiply
    339,884.04x = 509,826 × 161,851.26
  4. Step 4: Simplify right side
    339,884.04x = 82,515,980,480.76
  5. Step 5: Solve for x
    x = 82,515,980,480.76/339,884.04
  6. Step 6: Final answer
    x = 242,776.86

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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.