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Finding the Fourth Proportional to 273,128.25, 376,917.23 and 152,267.11

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Solution

The fourth proportional to 273,128.25, 376,917.23 and 152,267.11 is: 210,128.75

Step by Step Solution

  1. Step 1: Write the proportion equation
    273,128.25 : 376,917.23 = 152,267.11 : x
  2. Step 2: Convert to fraction form
    273,128.25/376,917.23 = 152,267.11/x
  3. Step 3: Cross multiply
    273,128.25x = 376,917.23 × 152,267.11
  4. Step 4: Simplify right side
    273,128.25x = 57,392,097,321.31
  5. Step 5: Solve for x
    x = 57,392,097,321.31/273,128.25
  6. Step 6: Final answer
    x = 210,128.75

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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.