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Finding the Fourth Proportional to 148,434.60, 222,651.90 and 137,029.80

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Solution

The fourth proportional to 148,434.60, 222,651.90 and 137,029.80 is: 205,544.70

Step by Step Solution

  1. Step 1: Write the proportion equation
    148,434.60 : 222,651.90 = 137,029.80 : x
  2. Step 2: Convert to fraction form
    148,434.60/222,651.90 = 137,029.80/x
  3. Step 3: Cross multiply
    148,434.60x = 222,651.90 × 137,029.80
  4. Step 4: Simplify right side
    148,434.60x = 30,509,945,326.62
  5. Step 5: Solve for x
    x = 30,509,945,326.62/148,434.60
  6. Step 6: Final answer
    x = 205,544.70

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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.