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Finding the Fourth Proportional to 273,057.13, 409,321.05 and 104,447.62

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Solution

The fourth proportional to 273,057.13, 409,321.05 and 104,447.62 is: 156,570.20

Step by Step Solution

  1. Step 1: Write the proportion equation
    273,057.13 : 409,321.05 = 104,447.62 : x
  2. Step 2: Convert to fraction form
    273,057.13/409,321.05 = 104,447.62/x
  3. Step 3: Cross multiply
    273,057.13x = 409,321.05 × 104,447.62
  4. Step 4: Simplify right side
    273,057.13x = 42,752,609,488.40
  5. Step 5: Solve for x
    x = 42,752,609,488.40/273,057.13
  6. Step 6: Final answer
    x = 156,570.20

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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.