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Finding the Fourth Proportional to 273,209.25, 377,028.77 and 153,977.25

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Solution

The fourth proportional to 273,209.25, 377,028.77 and 153,977.25 is: 212,488.61

Step by Step Solution

  1. Step 1: Write the proportion equation
    273,209.25 : 377,028.77 = 153,977.25 : x
  2. Step 2: Convert to fraction form
    273,209.25/377,028.77 = 153,977.25/x
  3. Step 3: Cross multiply
    273,209.25x = 377,028.77 × 153,977.25
  4. Step 4: Simplify right side
    273,209.25x = 58,053,852,405.60
  5. Step 5: Solve for x
    x = 58,053,852,405.60/273,209.25
  6. Step 6: Final answer
    x = 212,488.61

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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.