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Finding the Fourth Proportional to 273,166.20, 409,530.60 and 115,264.80

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Solution

The fourth proportional to 273,166.20, 409,530.60 and 115,264.80 is: 172,804.92

Step by Step Solution

  1. Step 1: Write the proportion equation
    273,166.20 : 409,530.60 = 115,264.80 : x
  2. Step 2: Convert to fraction form
    273,166.20/409,530.60 = 115,264.80/x
  3. Step 3: Cross multiply
    273,166.20x = 409,530.60 × 115,264.80
  4. Step 4: Simplify right side
    273,166.20x = 47,204,462,702.88
  5. Step 5: Solve for x
    x = 47,204,462,702.88/273,166.20
  6. Step 6: Final answer
    x = 172,804.92

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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.