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Finding the Fourth Proportional to 273,907.05, 377,970.21 and 151,394.28

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Solution

The fourth proportional to 273,907.05, 377,970.21 and 151,394.28 is: 208,912.21

Step by Step Solution

  1. Step 1: Write the proportion equation
    273,907.05 : 377,970.21 = 151,394.28 : x
  2. Step 2: Convert to fraction form
    273,907.05/377,970.21 = 151,394.28/x
  3. Step 3: Cross multiply
    273,907.05x = 377,970.21 × 151,394.28
  4. Step 4: Simplify right side
    273,907.05x = 57,222,527,804.40
  5. Step 5: Solve for x
    x = 57,222,527,804.40/273,907.05
  6. Step 6: Final answer
    x = 208,912.21

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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.