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Finding the Fourth Proportional to 339,472.79, 509,304.51 and 99,592.37

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Solution

The fourth proportional to 339,472.79, 509,304.51 and 99,592.37 is: 149,416.52

Step by Step Solution

  1. Step 1: Write the proportion equation
    339,472.79 : 509,304.51 = 99,592.37 : x
  2. Step 2: Convert to fraction form
    339,472.79/509,304.51 = 99,592.37/x
  3. Step 3: Cross multiply
    339,472.79x = 509,304.51 × 99,592.37
  4. Step 4: Simplify right side
    339,472.79x = 50,722,843,202.59
  5. Step 5: Solve for x
    x = 50,722,843,202.59/339,472.79
  6. Step 6: Final answer
    x = 149,416.52

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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.