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Finding the Fourth Proportional to 339,473.79, 509,306.01 and 99,593.37

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Solution

The fourth proportional to 339,473.79, 509,306.01 and 99,593.37 is: 149,418.02

Step by Step Solution

  1. Step 1: Write the proportion equation
    339,473.79 : 509,306.01 = 99,593.37 : x
  2. Step 2: Convert to fraction form
    339,473.79/509,306.01 = 99,593.37/x
  3. Step 3: Cross multiply
    339,473.79x = 509,306.01 × 99,593.37
  4. Step 4: Simplify right side
    339,473.79x = 50,723,501,897.15
  5. Step 5: Solve for x
    x = 50,723,501,897.15/339,473.79
  6. Step 6: Final answer
    x = 149,418.02

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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.