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Finding the Fourth Proportional to 252,080.02, 347,879.22 and 137,368.11

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Solution

The fourth proportional to 252,080.02, 347,879.22 and 137,368.11 is: 189,572.78

Step by Step Solution

  1. Step 1: Write the proportion equation
    252,080.02 : 347,879.22 = 137,368.11 : x
  2. Step 2: Convert to fraction form
    252,080.02/347,879.22 = 137,368.11/x
  3. Step 3: Cross multiply
    252,080.02x = 347,879.22 × 137,368.11
  4. Step 4: Simplify right side
    252,080.02x = 47,787,511,474.80
  5. Step 5: Solve for x
    x = 47,787,511,474.80/252,080.02
  6. Step 6: Final answer
    x = 189,572.78

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Why These Related Problems?

These problems maintain the same ratio (1.38) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.