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Finding the Fourth Proportional to 339,342.60, 509,076.44 and 111,651.02

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Solution

The fourth proportional to 339,342.60, 509,076.44 and 111,651.02 is: 167,497.11

Step by Step Solution

  1. Step 1: Write the proportion equation
    339,342.60 : 509,076.44 = 111,651.02 : x
  2. Step 2: Convert to fraction form
    339,342.60/509,076.44 = 111,651.02/x
  3. Step 3: Cross multiply
    339,342.60x = 509,076.44 × 111,651.02
  4. Step 4: Simplify right side
    339,342.60x = 56,838,903,783.97
  5. Step 5: Solve for x
    x = 56,838,903,783.97/339,342.60
  6. Step 6: Final answer
    x = 167,497.11

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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.