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Finding the Fourth Proportional to 273,197.80, 410,103.90 and 211,143.40

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Solution

The fourth proportional to 273,197.80, 410,103.90 and 211,143.40 is: 316,952.52

Step by Step Solution

  1. Step 1: Write the proportion equation
    273,197.80 : 410,103.90 = 211,143.40 : x
  2. Step 2: Convert to fraction form
    273,197.80/410,103.90 = 211,143.40/x
  3. Step 3: Cross multiply
    273,197.80x = 410,103.90 × 211,143.40
  4. Step 4: Simplify right side
    273,197.80x = 86,590,731,799.26
  5. Step 5: Solve for x
    x = 86,590,731,799.26/273,197.80
  6. Step 6: Final answer
    x = 316,952.52

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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.