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Finding the Fourth Proportional to 339,606.64, 509,380.60 and 114,962.28

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Solution

The fourth proportional to 339,606.64, 509,380.60 and 114,962.28 is: 172,433.48

Step by Step Solution

  1. Step 1: Write the proportion equation
    339,606.64 : 509,380.60 = 114,962.28 : x
  2. Step 2: Convert to fraction form
    339,606.64/509,380.60 = 114,962.28/x
  3. Step 3: Cross multiply
    339,606.64x = 509,380.60 × 114,962.28
  4. Step 4: Simplify right side
    339,606.64x = 58,559,555,163.77
  5. Step 5: Solve for x
    x = 58,559,555,163.77/339,606.64
  6. Step 6: Final answer
    x = 172,433.48

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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.