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Finding the Fourth Proportional to 339,538.60, 508,724.70 and 161,662.60

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Solution

The fourth proportional to 339,538.60, 508,724.70 and 161,662.60 is: 242,216.22

Step by Step Solution

  1. Step 1: Write the proportion equation
    339,538.60 : 508,724.70 = 161,662.60 : x
  2. Step 2: Convert to fraction form
    339,538.60/508,724.70 = 161,662.60/x
  3. Step 3: Cross multiply
    339,538.60x = 508,724.70 × 161,662.60
  4. Step 4: Simplify right side
    339,538.60x = 82,241,757,686.22
  5. Step 5: Solve for x
    x = 82,241,757,686.22/339,538.60
  6. Step 6: Final answer
    x = 242,216.22

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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.